diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/use.mask b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/use.mask
index fca4ed9c32..765a2a06db 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/use.mask
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/use.mask
@@ -1,2 +1,6 @@
 # Never enable experimental code
 kdbus
+
+# We default to python 3.6 for now
+python_targets_python3_7
+python_single_target_python3_7