diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2023549978c..b62328f4dde 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -132,7 +132,7 @@ To develop Firebase software, **install**:
    To install [clang-format] and [mint] using [Homebrew]:
 
     ```console
-    brew install clang-format@17
+    brew install clang-format@18
     brew install mint
     ```
 
diff --git a/README.md b/README.md
index 7ab83d9c446..6e0742ddb29 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ GitHub Actions will verify that any code changes are done in a style-compliant
 way. Install `clang-format` and `mint`:
 
 ```console
-brew install clang-format@17
+brew install clang-format@18
 brew install mint
 ```