diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aed529fe..5e253936 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        maven: [ '3.8.8', '3.9.8' ]
+        maven: [ '3.8.8', '3.9.9' ]
         java: [ '11', '17' ]
         os: [ 'ubuntu-latest', 'windows-latest' ]
     runs-on: ${{ matrix.os }}
diff --git a/pom.xml b/pom.xml
index 9dbd28b4..6c7528af 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,7 +92,7 @@ under the License.
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-        <maven.version>3.9.8</maven.version>
+        <maven.version>3.9.9</maven.version>
         <maven-plugin-plugin.version>3.14.0</maven-plugin-plugin.version>
         <maven-reporting-api.version>3.1.1</maven-reporting-api.version>
         <doxia.version>1.11.1</doxia.version>