diff --git a/install b/install
index 51c0387..dce331d 100755
--- a/install
+++ b/install
@@ -6,8 +6,13 @@ if ! docker images | grep -e "^$PLUGIN_IMAGE " | grep -q "$PLUGIN_IMAGE_VERSION"
   docker pull "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION"
 fi
 
-docker pull svendowideit/ambassador:latest
-docker pull aanand/wait:latest
+if ! docker images | grep -e "^svendowideit/ambassador "; then
+  docker pull svendowideit/ambassador:latest
+fi
+
+if ! docker images | grep -e "^aanand/wait " | grep -q "$PLUGIN_IMAGE_VERSION" ; then
+  docker pull aanand/wait:latest
+fi
 
 mkdir -p "$PLUGIN_DATA_ROOT" || echo "Failed to create $PLUGIN_SERVICE directory"
 chown dokku:dokku "$PLUGIN_DATA_ROOT"