diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index cd4f791..636ae4e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -38,6 +38,7 @@ jobs:
           - 16
           - 17
           - 18
+          - 19
     steps:
     - uses: actions/checkout@v4
     - name: Build and test the Docker image
@@ -65,6 +66,7 @@ jobs:
           - 16
           - 17
           - 18
+          - 19
         path:
           - check: 'test/known_fail'
             exclude: 'capital'
diff --git a/README.md b/README.md
index f56edf1..73bc5f0 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ You can define your own formatting rules in a `.clang-format` file at your repos
 * 16: `clang-format-16`
 * 17: `clang-format-17`
 * 18: `clang-format-18`
+* 19: `clang-format-19`
 
 ## Action version upgrade guarantee