diff --git a/runtime.txt b/runtime.txt
index 4252f10667b7c2fce89b70b74097960c86c7cf6c..0c89a2d2fcc8afa6b3b701fecccdbc6fb1b63c97 100644
--- a/runtime.txt
+++ b/runtime.txt
@@ -1 +1 @@
-python-3.6.12
+python-3.6.13