diff --git a/runtime.txt b/runtime.txt
index 6aaad49f75b746e81aad5e854e142a0c01650225..c9cbcea6fb0564c8e9468395022320052dedcf72 100644
--- a/runtime.txt
+++ b/runtime.txt
@@ -1 +1 @@
-python-3.6.15
+python-3.9.16