diff --git a/app/Helpers/Help/Help.php b/app/Helpers/Help/Help.php
index 7c9358e4bb..a9fcd1869a 100644
--- a/app/Helpers/Help/Help.php
+++ b/app/Helpers/Help/Help.php
@@ -24,9 +24,10 @@ namespace FireflyIII\Helpers\Help;
 
 use Cache;
 use Exception;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 use League\CommonMark\CommonMarkConverter;
 use Log;
-use Requests;
 use Route;
 
 /**
@@ -64,20 +65,21 @@ class Help implements HelpInterface
     {
         $uri = sprintf('https://raw.githubusercontent.com/firefly-iii/help/master/%s/%s.md', $language, $route);
         Log::debug(sprintf('Trying to get %s...', $uri));
-        $opt     = ['useragent' => $this->userAgent];
+        $opt     = ['headers' => ['User-Agent' => $this->userAgent]];
         $content = '';
         try {
-            $result = Requests::get($uri, [], $opt);
-        } catch (Exception $e) {
+            $client = new Client;
+            $res    = $client->request('GET', $uri, $opt);
+        } catch (GuzzleException|Exception $e) {
             Log::error($e);
 
             return '';
         }
 
-        Log::debug(sprintf('Status code is %d', $result->status_code));
+        Log::debug(sprintf('Status code is %d', $res->getStatusCode()));
 
-        if (200 === $result->status_code) {
-            $content = trim($result->body);
+        if (200 === $res->getStatusCode()) {
+            $content = trim($res->getBody()->getContents());
         }
 
         if (\strlen($content) > 0) {
diff --git a/app/Services/Currency/FixerIO.php b/app/Services/Currency/FixerIO.php
deleted file mode 100644
index 561cac7315..0000000000
--- a/app/Services/Currency/FixerIO.php
+++ /dev/null
@@ -1,96 +0,0 @@
-<?php
-/**
- * FixerIO.php
- * Copyright (c) 2017 thegrumpydictator@gmail.com
- *
- * This file is part of Firefly III.
- *
- * Firefly III is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Firefly III is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
- */
-declare(strict_types=1);
-
-namespace FireflyIII\Services\Currency;
-
-use Carbon\Carbon;
-use Exception;
-use FireflyIII\Models\CurrencyExchangeRate;
-use FireflyIII\Models\TransactionCurrency;
-use FireflyIII\User;
-use Log;
-use Requests;
-
-/**
- * Class FixerIO.
- */
-class FixerIO implements ExchangeRateInterface
-{
-    /** @var User */
-    protected $user;
-
-    /**
-     * @param TransactionCurrency $fromCurrency
-     * @param TransactionCurrency $toCurrency
-     * @param Carbon              $date
-     *
-     * @return CurrencyExchangeRate
-     */
-    public function getRate(TransactionCurrency $fromCurrency, TransactionCurrency $toCurrency, Carbon $date): CurrencyExchangeRate
-    {
-        $uri        = sprintf('https://api.fixer.io/%s?base=%s&symbols=%s', $date->format('Y-m-d'), $fromCurrency->code, $toCurrency->code);
-        $statusCode = -1;
-        try {
-            $result     = Requests::get($uri);
-            $statusCode = $result->status_code;
-            $body       = $result->body;
-        } catch (Exception $e) {
-            // don't care about error
-            $body = sprintf('Requests_Exception: %s', $e->getMessage());
-        }
-        // Requests_Exception
-        $rate    = 1.0;
-        $content = null;
-        if (200 !== $statusCode) {
-            Log::error(sprintf('Something went wrong. Received error code %d and body "%s" from FixerIO.', $statusCode, $body));
-        }
-        // get rate from body:
-        if (200 === $statusCode) {
-            $content = json_decode($body, true);
-        }
-        if (null !== $content) {
-            $code = $toCurrency->code;
-            $rate = $content['rates'][$code] ?? '1';
-        }
-
-        // create new currency exchange rate object:
-        $exchangeRate = new CurrencyExchangeRate;
-        $exchangeRate->user()->associate($this->user);
-        $exchangeRate->fromCurrency()->associate($fromCurrency);
-        $exchangeRate->toCurrency()->associate($toCurrency);
-        $exchangeRate->date = $date;
-        $exchangeRate->rate = $rate;
-        $exchangeRate->save();
-
-        return $exchangeRate;
-    }
-
-    /**
-     * @param User $user
-     *
-     * @return mixed|void
-     */
-    public function setUser(User $user)
-    {
-        $this->user = $user;
-    }
-}
diff --git a/app/Services/Currency/FixerIOv2.php b/app/Services/Currency/FixerIOv2.php
index 67d4a77c82..f44e917eb4 100644
--- a/app/Services/Currency/FixerIOv2.php
+++ b/app/Services/Currency/FixerIOv2.php
@@ -27,8 +27,9 @@ use Exception;
 use FireflyIII\Models\CurrencyExchangeRate;
 use FireflyIII\Models\TransactionCurrency;
 use FireflyIII\User;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 use Log;
-use Requests;
 
 /**
  * Class FixerIOv2.
@@ -60,7 +61,9 @@ class FixerIOv2 implements ExchangeRateInterface
         $apiKey = env('FIXER_API_KEY', '');
 
         // if no API key, return unsaved exchange rate.
-        if (\strlen($apiKey) === 0) {
+        if ('' === $apiKey) {
+            Log::warning('No fixer.IO API key, will not do conversion.');
+
             return $exchangeRate;
         }
 
@@ -72,31 +75,36 @@ class FixerIOv2 implements ExchangeRateInterface
         $statusCode = -1;
         Log::debug(sprintf('Going to request exchange rate using URI %s', str_replace($apiKey, 'xxxx', $uri)));
         try {
-            $result     = Requests::get($uri);
-            $statusCode = $result->status_code;
-            $body       = $result->body;
+            $client     = new Client;
+            $res        = $client->request('GET', $uri);
+            $statusCode = $res->getStatusCode();
+            $body       = $res->getBody()->getContents();
             Log::debug(sprintf('Result status code is %d', $statusCode));
-        } catch (Exception $e) {
+            Log::debug(sprintf('Result body is: %s', $body));
+        } catch (GuzzleException|Exception $e) {
             // don't care about error
-            $body = sprintf('Requests_Exception: %s', $e->getMessage());
+            $body = sprintf('Guzzle exception: %s', $e->getMessage());
         }
 
-        // Requests_Exception
         $content = null;
         if (200 !== $statusCode) {
             Log::error(sprintf('Something went wrong. Received error code %d and body "%s" from FixerIO.', $statusCode, $body));
         }
+        $success = false;
         // get rate from body:
         if (200 === $statusCode) {
             $content = json_decode($body, true);
+            $success = $content['success'] ?? false;
         }
-        if (null !== $content) {
+        if (null !== $content && true === $success) {
             $code = $toCurrency->code;
             $rate = (float)($content['rates'][$code] ?? 0);
+            Log::debug('Got the following rates from Fixer: ', $content['rates'] ?? []);
         }
-        Log::debug('Got the following rates from Fixer: ', $content['rates'] ?? []);
+
         $exchangeRate->rate = $rate;
         if ($rate !== 0.0) {
+            Log::debug('Rate is not zero, save it!');
             $exchangeRate->save();
         }
 
diff --git a/app/Services/Github/Request/GithubRequest.php b/app/Services/Github/Request/GithubRequest.php
index 3e7a5ca5d6..fc3552a18c 100644
--- a/app/Services/Github/Request/GithubRequest.php
+++ b/app/Services/Github/Request/GithubRequest.php
@@ -29,6 +29,6 @@ namespace FireflyIII\Services\Github\Request;
  */
 interface GithubRequest
 {
-    public function call();
+    public function call(): void;
 
 }
diff --git a/app/Services/Github/Request/UpdateRequest.php b/app/Services/Github/Request/UpdateRequest.php
index 9fb0f212dd..fd2d173049 100644
--- a/app/Services/Github/Request/UpdateRequest.php
+++ b/app/Services/Github/Request/UpdateRequest.php
@@ -26,7 +26,9 @@ namespace FireflyIII\Services\Github\Request;
 use Exception;
 use FireflyIII\Exceptions\FireflyException;
 use FireflyIII\Services\Github\Object\Release;
-use Requests;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
+use Log;
 use SimpleXMLElement;
 
 /**
@@ -41,30 +43,34 @@ class UpdateRequest implements GithubRequest
      *
      * @throws FireflyException
      */
-    public function call()
+    public function call(): void
     {
         $uri = 'https://github.com/firefly-iii/firefly-iii/releases.atom';
+        Log::debug(sprintf('Going to call %s', $uri));
         try {
-            $response = Requests::get($uri);
-        } catch (Exception $e) {
+            $client = new Client();
+            $res    = $client->request('GET', $uri);
+        } catch (GuzzleException|Exception $e) {
             throw new FireflyException(sprintf('Response error from Github: %s', $e->getMessage()));
         }
 
-        if ($response->status_code !== 200) {
-            throw new FireflyException(sprintf('Returned code %d, error: %s', $response->status_code, $response->body));
+        if ($res->getStatusCode() !== 200) {
+            throw new FireflyException(sprintf('Returned code %d, error: %s', $res->getStatusCode(), $res->getBody()->getContents()));
         }
 
-        $releaseXml = new SimpleXMLElement($response->body, LIBXML_NOCDATA);
+        $releaseXml = new SimpleXMLElement($res->getBody()->getContents(), LIBXML_NOCDATA);
 
         //fetch the products for each category
         if (isset($releaseXml->entry)) {
+            Log::debug(sprintf('Count of entries is: %d', \count($releaseXml->entry)));
             foreach ($releaseXml->entry as $entry) {
-                $array            = [
+                $array = [
                     'id'      => (string)$entry->id,
                     'updated' => (string)$entry->updated,
                     'title'   => (string)$entry->title,
                     'content' => (string)$entry->content,
                 ];
+                Log::debug(sprintf('Found version %s', $entry->title));
                 $this->releases[] = new Release($array);
             }
         }
diff --git a/app/Services/IP/IpifyOrg.php b/app/Services/IP/IpifyOrg.php
index 2e72e23c9c..0c0f8a3404 100644
--- a/app/Services/IP/IpifyOrg.php
+++ b/app/Services/IP/IpifyOrg.php
@@ -24,8 +24,9 @@ declare(strict_types=1);
 namespace FireflyIII\Services\IP;
 
 use Exception;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 use Log;
-use Requests;
 
 /**
  * Class IpifyOrg
@@ -42,19 +43,20 @@ class IpifyOrg implements IPRetrievalInterface
     {
         $result = null;
         try {
-            $response = Requests::get('https://api.ipify.org');
-        } catch (Exception $e) {
+            $client = new Client;
+            $res    = $client->request('GET', 'https://api.ipify.org');
+        } catch (GuzzleException|Exception $e) {
             Log::warning(sprintf('The ipify.org service could not retrieve external IP: %s', $e->getMessage()));
             Log::warning($e->getTraceAsString());
 
             return null;
         }
-        if (200 !== $response->status_code) {
-            Log::warning(sprintf('Could not retrieve external IP: %d %s', $response->status_code, $response->body));
+        if (200 !== $res->getStatusCode()) {
+            Log::warning(sprintf('Could not retrieve external IP: %d %s', $res->getStatusCode(), $res->getBody()->getContents()));
 
             return null;
         }
 
-        return (string)$response->body;
+        return (string)$res->getBody()->getContents();
     }
 }
diff --git a/app/Services/Password/PwndVerifier.php b/app/Services/Password/PwndVerifier.php
deleted file mode 100644
index d5bc349253..0000000000
--- a/app/Services/Password/PwndVerifier.php
+++ /dev/null
@@ -1,56 +0,0 @@
-<?php
-/**
- * PwndVerifier.php
- * Copyright (c) 2017 thegrumpydictator@gmail.com
- *
- * This file is part of Firefly III.
- *
- * Firefly III is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Firefly III is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
- */
-declare(strict_types=1);
-
-namespace FireflyIII\Services\Password;
-
-use Exception;
-use Log;
-use Requests;
-
-/**
- * Class PwndVerifier.
- */
-class PwndVerifier implements Verifier
-{
-    /**
-     * Verify the given password against (some) service.
-     *
-     * @param string $password
-     *
-     * @return bool
-     */
-    public function validPassword(string $password): bool
-    {
-        $hash = sha1($password);
-        $uri  = sprintf('https://haveibeenpwned.com/api/v2/pwnedpassword/%s', $hash);
-        $opt  = ['useragent' => 'Firefly III v' . config('firefly.version'), 'timeout' => 2];
-
-        try {
-            $result = Requests::get($uri, ['originalPasswordIsAHash' => 'true'], $opt);
-        } catch (Exception $e) {
-            return true;
-        }
-        Log::debug(sprintf('Status code returned is %d', $result->status_code));
-
-        return 404 === $result->status_code;
-    }
-}
diff --git a/app/Services/Password/PwndVerifierV2.php b/app/Services/Password/PwndVerifierV2.php
index bf3cd330cf..014fbbcbe6 100644
--- a/app/Services/Password/PwndVerifierV2.php
+++ b/app/Services/Password/PwndVerifierV2.php
@@ -23,8 +23,9 @@ declare(strict_types=1);
 namespace FireflyIII\Services\Password;
 
 use Exception;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 use Log;
-use Requests;
 
 /**
  * Class PwndVerifierV2.
@@ -44,27 +45,30 @@ class PwndVerifierV2 implements Verifier
         $prefix = substr($hash, 0, 5);
         $rest   = substr($hash, 5);
         $uri    = sprintf('https://api.pwnedpasswords.com/range/%s', $prefix);
-        $opt    = ['useragent' => 'Firefly III v' . config('firefly.version'), 'timeout' => 2];
+        $opt    = [
+            'headers' => ['User-Agent' => 'Firefly III v' . config('firefly.version')],
+            'timeout' => 2];
 
         Log::debug(sprintf('hash prefix is %s', $prefix));
         Log::debug(sprintf('rest is %s', $rest));
 
         try {
-            $result = Requests::get($uri, $opt);
-        } catch (Exception $e) {
+            $client = new Client();
+            $res    = $client->request('GET', $uri, $opt);
+        } catch (GuzzleException|Exception $e) {
             return true;
         }
-        Log::debug(sprintf('Status code returned is %d', $result->status_code));
-        if (404 === $result->status_code) {
+        Log::debug(sprintf('Status code returned is %d', $res->getStatusCode()));
+        if (404 === $res->getStatusCode()) {
             return true;
         }
-        $strpos = stripos($result->body, $rest);
+        $strpos = stripos($res->getBody()->getContents(), $rest);
         if ($strpos === false) {
             Log::debug(sprintf('%s was not found in result body. Return true.', $rest));
 
             return true;
         }
-        Log::debug('Could not find %s, return FALSE.');
+        Log::debug(sprintf('Could not find %s, return FALSE.', $rest));
 
         return false;
     }
diff --git a/app/Services/Spectre/Request/SpectreRequest.php b/app/Services/Spectre/Request/SpectreRequest.php
index 6b735de91b..1fafadf23c 100644
--- a/app/Services/Spectre/Request/SpectreRequest.php
+++ b/app/Services/Spectre/Request/SpectreRequest.php
@@ -25,9 +25,9 @@ namespace FireflyIII\Services\Spectre\Request;
 use Exception;
 use FireflyIII\Exceptions\FireflyException;
 use FireflyIII\User;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 use Log;
-use Requests;
-use Requests_Response;
 
 /**
  * Class SpectreRequest
@@ -195,23 +195,24 @@ abstract class SpectreRequest
         }
 
         $headers              = $this->getDefaultHeaders();
-        $body                 = json_encode($data);
+        $sendBody             = json_encode($data); // OK
         $fullUri              = $this->server . $uri;
-        $signature            = $this->generateSignature('get', $fullUri, $body);
+        $signature            = $this->generateSignature('get', $fullUri, $sendBody);
         $headers['Signature'] = $signature;
 
         Log::debug('Final headers for spectre signed get request:', $headers);
         try {
-            $response = Requests::get($fullUri, $headers);
-        } catch (Exception $e) {
-            throw new FireflyException(sprintf('Request Exception: %s', $e->getMessage()));
+            $client = new Client;
+            $res    = $client->request('GET', $fullUri, ['headers' => $headers]);
+        } catch (GuzzleException|Exception $e) {
+            throw new FireflyException(sprintf('Guzzle Exception: %s', $e->getMessage()));
         }
-        $this->detectError($response);
-        $statusCode = (int)$response->status_code;
+        $statusCode = $res->getStatusCode();
+        $returnBody = $res->getBody()->getContents();
+        $this->detectError($returnBody, $statusCode);
 
-        $body                        = $response->body;
-        $array                       = json_decode($body, true);
-        $responseHeaders             = $response->headers->getAll();
+        $array                       = json_decode($returnBody, true);
+        $responseHeaders             = $res->getHeaders();
         $array['ResponseHeaders']    = $responseHeaders;
         $array['ResponseStatusCode'] = $statusCode;
 
@@ -220,6 +221,7 @@ abstract class SpectreRequest
             throw new FireflyException(sprintf('Error of class %s: %s', $array['error_class'], $message));
         }
 
+
         return $array;
     }
 
@@ -245,28 +247,32 @@ abstract class SpectreRequest
 
         Log::debug('Final headers for spectre signed POST request:', $headers);
         try {
-            $response = Requests::post($fullUri, $headers, $body);
-        } catch (Exception $e) {
+            $client = new Client;
+            $res    = $client->request('POST', $fullUri, ['headers' => $headers, 'body' => $body]);
+        } catch (GuzzleException|Exception $e) {
             throw new FireflyException(sprintf('Request Exception: %s', $e->getMessage()));
         }
-        $this->detectError($response);
-        $body                        = $response->body;
+        $body       = $res->getBody()->getContents();
+        $statusCode = $res->getStatusCode();
+        $this->detectError($body, $statusCode);
+
         $array                       = json_decode($body, true);
-        $responseHeaders             = $response->headers->getAll();
+        $responseHeaders             = $res->getHeaders();
         $array['ResponseHeaders']    = $responseHeaders;
-        $array['ResponseStatusCode'] = $response->status_code;
+        $array['ResponseStatusCode'] = $statusCode;
 
         return $array;
     }
 
     /**
-     * @param Requests_Response $response
+     * @param string $body
+     *
+     * @param int    $statusCode
      *
      * @throws FireflyException
      */
-    private function detectError(Requests_Response $response): void
+    private function detectError(string $body, int $statusCode): void
     {
-        $body  = $response->body;
         $array = json_decode($body, true);
         if (isset($array['error_class'])) {
             $message    = $array['error_message'] ?? '(no message)';
@@ -279,9 +285,8 @@ abstract class SpectreRequest
             throw new FireflyException(sprintf('Error of class %s: %s', $errorClass, $message));
         }
 
-        $statusCode = (int)$response->status_code;
         if (200 !== $statusCode) {
-            throw new FireflyException(sprintf('Status code %d: %s', $statusCode, $response->body));
+            throw new FireflyException(sprintf('Status code %d: %s', $statusCode, $body));
         }
     }
 }