diff --git a/@xen-orchestra/proxy-cli/package.json b/@xen-orchestra/proxy-cli/package.json
index fe905e484..4a356d303 100644
--- a/@xen-orchestra/proxy-cli/package.json
+++ b/@xen-orchestra/proxy-cli/package.json
@@ -31,7 +31,7 @@
   "dependencies": {
     "@iarna/toml": "^2.2.0",
     "@vates/read-chunk": "^0.1.1",
-    "app-conf": "^0.7.0",
+    "app-conf": "^0.9.0",
     "content-type": "^1.0.4",
     "cson-parser": "^4.0.7",
     "getopts": "^2.2.3",
diff --git a/packages/xo-server-test/package.json b/packages/xo-server-test/package.json
index 83ee91ca0..35f605187 100644
--- a/packages/xo-server-test/package.json
+++ b/packages/xo-server-test/package.json
@@ -32,7 +32,7 @@
     "@babel/preset-env": "^7.1.6",
     "@iarna/toml": "^2.2.1",
     "@vates/parse-duration": "^0.1.0",
-    "app-conf": "^0.8.0",
+    "app-conf": "^0.9.0",
     "babel-plugin-lodash": "^3.2.11",
     "golike-defer": "^0.5.1",
     "jest": "^24.8.0",
diff --git a/packages/xo-server/package.json b/packages/xo-server/package.json
index 8fc8eaa5d..654628d8b 100644
--- a/packages/xo-server/package.json
+++ b/packages/xo-server/package.json
@@ -49,7 +49,7 @@
     "@xen-orchestra/self-signed": "^0.1.0",
     "@xen-orchestra/template": "^0.1.0",
     "ajv": "^6.1.1",
-    "app-conf": "^0.8.0",
+    "app-conf": "^0.9.0",
     "archiver": "^5.0.0",
     "async-iterator-to-stream": "^1.0.1",
     "base64url": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 32c978f90..603f0aeaa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2486,30 +2486,6 @@ anymatch@^3.0.3, anymatch@~3.1.1:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
-app-conf@^0.7.0:
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/app-conf/-/app-conf-0.7.1.tgz#59bf3605e6d8fa19107408ae9f94c1c9984764b4"
-  integrity sha512-arusY8qGB4EmPFUweuLVQde4cj0zQfMBo+D7wRk285SQPfetX9Jk+4VRL+20n5dsJr4Rm4uj2y6exm78wsgCFg==
-  dependencies:
-    debug "^4.1.0"
-    glob "^7.1.3"
-    lodash "^4.17.11"
-    make-error "^1.3.5"
-    promise-toolbox "^0.14.0"
-    xdg-basedir "^3.0.0"
-
-app-conf@^0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/app-conf/-/app-conf-0.8.0.tgz#14c8393a68097ff03fab259e832b1be89b71dfc6"
-  integrity sha512-E0yaMWqkxrnSDXPuiN6MZMJxqcoE151Ozxxe5gB5vcHKa/zzOkUbmjCu5Ytqs56cd5/wpRv5vmiMM3fGq55oGQ==
-  dependencies:
-    debug "^4.1.0"
-    glob "^7.1.3"
-    lodash "^4.17.11"
-    make-error "^1.3.5"
-    promise-toolbox "^0.14.0"
-    xdg-basedir "^3.0.0"
-
 app-conf@^0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/app-conf/-/app-conf-0.9.0.tgz#194cbcd023a1b1fe7f86fb0ee8cb612cb81cdc13"