diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5f549dfa9d2..5722110bb01 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@18
+    brew install clang-format@19
     brew install mint
     ```
 
diff --git a/README.md b/README.md
index 5da753b2321..f5a0c418e97 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@18
+brew install clang-format@19
 brew install mint
 ```
 
diff --git a/scripts/style.sh b/scripts/style.sh
index 5caf8e54296..d0bfaf8b2c1 100755
--- a/scripts/style.sh
+++ b/scripts/style.sh
@@ -65,7 +65,7 @@ case "$version" in
     exit 1
     ;;
   *)
-    echo "Please upgrade to clang-format version 18."
+    echo "Please upgrade to clang-format version 19."
     echo "If it's installed via homebrew you can run:"
     echo "brew upgrade clang-format"
     exit 1