diff --git a/runtime.txt b/runtime.txt
index 1935e9778db66275403e99759f51768cc7599918..34b35b713f56868abc889d5798cab36939bec38f 100644
--- a/runtime.txt
+++ b/runtime.txt
@@ -1 +1 @@
-python-3.6.6
+python-3.6.7