diff --git a/aws-sam-cli-main/samcli/local/lambdafn/runtime.py b/aws-sam-cli-main/samcli/local/lambdafn/runtime.py
index 163f967..3cce676 100644
--- a/aws-sam-cli-main/samcli/local/lambdafn/runtime.py
+++ b/aws-sam-cli-main/samcli/local/lambdafn/runtime.py
@@ -488,7 +488,7 @@ def _unzip_file(filepath):
     temp_dir = tempfile.mkdtemp()
 
     if os.name == "posix":
-        os.chmod(temp_dir, 0o755)
+        os.chmod(temp_dir, 0o400)
 
     LOG.info("Decompressing %s", filepath)