diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index ab1c1bb..fd6d7dd 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -17,4 +17,5 @@ jobs:
       with:
         clang-format-version: '13'
         check-path: ${{ matrix.path }}
+        exclude-regex: 'include/json.hpp'
         fallback-style: 'Mozilla' # optional