diff --git a/app.json b/app.json
index 804ef64..6db4337 100644
--- a/app.json
+++ b/app.json
@@ -33,6 +33,9 @@
     }
   },
   "buildpacks": [
+    {
+      "url": "https://github.com/heroku/heroku-buildpack-python.git"
+    },
     {
       "url": "https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git"
     }