diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3e7cf45..e753c18 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         os: [ 'ubuntu-latest', 'windows-latest', 'macOS-latest' ]
         java: [ '8', '11', '17', '21' ]
-        maven: [ '3.8.8', '3.9.8' ]
+        maven: [ '3.8.8', '3.9.9' ]
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
@@ -45,7 +45,7 @@ jobs:
 
       - uses: ./
 
-      - run: mvn -V validate -Drequire.java=17 -Drequire.maven=3.9.8
+      - run: mvn -V validate -Drequire.java=17 -Drequire.maven=3.9.9
         shell: bash
 
   test-ok:
diff --git a/README.md b/README.md
index 3d49372..4e40df3 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ So we can use for action:
 
 | params        | destination   | default |
 |---------------|---------------|---------|
-| maven-version | maven-version | 3.9.8   |
+| maven-version | maven-version | 3.9.9   |
 
 ## maven-settings-action
 
diff --git a/action.yml b/action.yml
index 5cf1644..97bcac1 100644
--- a/action.yml
+++ b/action.yml
@@ -82,7 +82,7 @@ inputs:
   # maven version
   maven-version:
     description: 'The Maven version to set up'
-    default: '3.9.8'
+    default: '3.9.9'
     required: false
 
   # maven settings.xml