GUACAMOLE-772: Switched runtime image to debian slim
diff --git a/Dockerfile b/Dockerfile
index f5f7a42..094842c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -75,7 +75,7 @@
         > ${PREFIX_DIR}/DEPENDENCIES
 
 # Use same Debian as the base for the runtime image
-FROM debian:${DEBIAN_VERSION}
+FROM debian:${DEBIAN_VERSION}-slim
 
 # Base directory for installed build artifacts.
 # Due to limitations of the Docker image build process, this value is