diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a0008c3db..d9546eaf7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,6 +11,7 @@ repos:
       - id: check-yaml
       - id: detect-private-key
       - id: end-of-file-fixer
+        exclude: ^specification/schema/
       - id: trailing-whitespace
       - id: fix-byte-order-marker
       - id: mixed-line-ending
diff --git a/specification/schema/serialization.md b/specification/schema/serialization.md
old mode 100755
new mode 100644