diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9a19fb6..9b899c9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby_version: ["2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby_version: ["2.7", "3.0", "3.1", "3.2", "3.3", "3.4"]
         os: ["ubuntu-latest","windows-latest","macos-latest"]
     steps:
       - uses: actions/checkout@v4
diff --git a/Dockerfile-bundle-base b/Dockerfile-bundle-base
index d0ad200..89cb075 100644
--- a/Dockerfile-bundle-base
+++ b/Dockerfile-bundle-base
@@ -1,4 +1,4 @@
-FROM ruby:2.7.8-alpine
+FROM ruby:3.4.4-alpine
 
 # Installation path
 ENV HOME=/app