diff --git a/python/repositories.bzl b/python/repositories.bzl
index 687388c62e..62f076b56b 100644
--- a/python/repositories.bzl
+++ b/python/repositories.bzl
@@ -128,7 +128,8 @@ filegroup(
             "share/**",
         ],
         exclude = [
-            "**/* *", # Bazel does not support spaces in file names.
+            "**/* *",   # Bazel does not support spaces in file names.
+            "**/*.pyc", # These are not deterministically generated, breaking remote caching
         ],
     ),
 )