diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6cfc36d3c7..174d122533 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -55,7 +55,7 @@ jobs:
       run: |
         echo "LANG=en_US.UTF-8" >> $GITHUB_ENV
         echo "MAVEN_OPTS=-Dmaven.wagon.httpconnectionManager.ttlSeconds=180 -Dmaven.wagon.http.retryHandler.count=3 -DautoReleaseAfterClose=true -DstagingProgressTimeoutMinutes=30" >> $GITHUB_ENV
-        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/20/scripts" >> $GITHUB_ENV
+        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/21/scripts" >> $GITHUB_ENV
     - name: Check Environment
       shell: bash
       run: |
diff --git a/.github/workflows/git-repo-sync.yml b/.github/workflows/git-repo-sync.yml
index 73012fd82c..17938efa47 100644
--- a/.github/workflows/git-repo-sync.yml
+++ b/.github/workflows/git-repo-sync.yml
@@ -24,7 +24,7 @@ jobs:
       shell: bash
       run: |
         echo "LANG=en_US.UTF-8" >> $GITHUB_ENV
-        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/20/scripts" >> $GITHUB_ENV
+        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/21/scripts" >> $GITHUB_ENV
     - name: Sync
       run: .ci/git-repo-sync.sh
       shell: bash
diff --git a/.github/workflows/troubleshooting.yml b/.github/workflows/troubleshooting.yml
index 615f0e7cfd..d8ee560a47 100644
--- a/.github/workflows/troubleshooting.yml
+++ b/.github/workflows/troubleshooting.yml
@@ -36,7 +36,7 @@ jobs:
         run: |
           echo "LANG=en_US.UTF-8" >> $GITHUB_ENV
           echo "MAVEN_OPTS=-Dmaven.wagon.httpconnectionManager.ttlSeconds=180 -Dmaven.wagon.http.retryHandler.count=3 -DstagingProgressTimeoutMinutes=30" >> $GITHUB_ENV
-          echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/20/scripts" >> $GITHUB_ENV
+          echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/21/scripts" >> $GITHUB_ENV
       - name: Check Environment
         shell: bash
         run: |
diff --git a/pom.xml b/pom.xml
index e9d022e5e2..d3b62eeb93 100644
--- a/pom.xml
+++ b/pom.xml
@@ -113,7 +113,7 @@
         <argLine>-Xmx512m -Dfile.encoding=${project.build.sourceEncoding} ${extraArgLine}</argLine>
         <extraArgLine /> <!-- empty by default, profiles set it as needed -->
 
-        <pmd.build-tools.version>20</pmd.build-tools.version>
+        <pmd.build-tools.version>21</pmd.build-tools.version>
 
         <pmd-designer.version>7.0.0-SNAPSHOT</pmd-designer.version>
         <javacc.jar>${settings.localRepository}/net/java/dev/javacc/javacc/${javacc.version}/javacc-${javacc.version}.jar</javacc.jar>