diff --git a/Dockerfile b/Dockerfile
index a3b0a069f9..15d23bb68f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,7 @@
 FROM jc5x/firefly-iii-base-image:latest
+
+# See also: https://github.com/JC5/firefly-iii-base-image
+
 ENV FIREFLY_PATH=/var/www/firefly-iii COMPOSER_ALLOW_SUPERUSER=1
 LABEL version="1.5" maintainer="thegrumpydictator@gmail.com"
 
diff --git a/Dockerfile.amd64 b/Dockerfile.amd64
index a3b0a069f9..15d23bb68f 100644
--- a/Dockerfile.amd64
+++ b/Dockerfile.amd64
@@ -1,4 +1,7 @@
 FROM jc5x/firefly-iii-base-image:latest
+
+# See also: https://github.com/JC5/firefly-iii-base-image
+
 ENV FIREFLY_PATH=/var/www/firefly-iii COMPOSER_ALLOW_SUPERUSER=1
 LABEL version="1.5" maintainer="thegrumpydictator@gmail.com"
 
diff --git a/Dockerfile.arm b/Dockerfile.arm
index d238e8cd12..2f881d546a 100644
--- a/Dockerfile.arm
+++ b/Dockerfile.arm
@@ -1,4 +1,7 @@
 FROM jc5x/firefly-iii-base-image:latest-arm
+
+# See also: https://github.com/JC5/firefly-iii-base-image
+
 ENV FIREFLY_PATH=/var/www/firefly-iii COMPOSER_ALLOW_SUPERUSER=1
 LABEL version="1.5" maintainer="thegrumpydictator@gmail.com"