diff --git a/pmd-apex-jorje/pom.xml b/pmd-apex-jorje/pom.xml
index 3ecd79b58e..a41354f84a 100644
--- a/pmd-apex-jorje/pom.xml
+++ b/pmd-apex-jorje/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>net.sourceforge.pmd</groupId>
     <artifactId>pmd</artifactId>
-    <version>6.51.0-SNAPSHOT</version>
+    <version>6.51.0</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/pmd-apex/pom.xml b/pmd-apex/pom.xml
index d80050e0ce..a5da8883cc 100644
--- a/pmd-apex/pom.xml
+++ b/pmd-apex/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-core/pom.xml b/pmd-core/pom.xml
index d8c12a2db6..ca12d559fd 100644
--- a/pmd-core/pom.xml
+++ b/pmd-core/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-cpp/pom.xml b/pmd-cpp/pom.xml
index 91c3734932..9cbf7f0418 100644
--- a/pmd-cpp/pom.xml
+++ b/pmd-cpp/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-cs/pom.xml b/pmd-cs/pom.xml
index d0bac9376b..4984c9ce8b 100644
--- a/pmd-cs/pom.xml
+++ b/pmd-cs/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-dart/pom.xml b/pmd-dart/pom.xml
index 5fffeab190..cb9de8f9c5 100644
--- a/pmd-dart/pom.xml
+++ b/pmd-dart/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-dist/pom.xml b/pmd-dist/pom.xml
index 82070748b7..c680cb3a6b 100644
--- a/pmd-dist/pom.xml
+++ b/pmd-dist/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-doc/pom.xml b/pmd-doc/pom.xml
index 3dfcfc73d1..b44dc68ff8 100644
--- a/pmd-doc/pom.xml
+++ b/pmd-doc/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-fortran/pom.xml b/pmd-fortran/pom.xml
index 5cba970f11..d0f456987d 100644
--- a/pmd-fortran/pom.xml
+++ b/pmd-fortran/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-gherkin/pom.xml b/pmd-gherkin/pom.xml
index 415023d340..aa3ba5999f 100644
--- a/pmd-gherkin/pom.xml
+++ b/pmd-gherkin/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-go/pom.xml b/pmd-go/pom.xml
index 3138dc39ba..98326c54ec 100644
--- a/pmd-go/pom.xml
+++ b/pmd-go/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-groovy/pom.xml b/pmd-groovy/pom.xml
index 20166cfb4f..d9f7f53dad 100644
--- a/pmd-groovy/pom.xml
+++ b/pmd-groovy/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-html/pom.xml b/pmd-html/pom.xml
index bf4ee5e693..3f1200ddfe 100644
--- a/pmd-html/pom.xml
+++ b/pmd-html/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-java/pom.xml b/pmd-java/pom.xml
index f711a40ab8..987b95f8ce 100644
--- a/pmd-java/pom.xml
+++ b/pmd-java/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-java8/pom.xml b/pmd-java8/pom.xml
index e6d123c011..98d843973b 100644
--- a/pmd-java8/pom.xml
+++ b/pmd-java8/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-javascript/pom.xml b/pmd-javascript/pom.xml
index 773e763b05..cb6e95924c 100644
--- a/pmd-javascript/pom.xml
+++ b/pmd-javascript/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-jsp/pom.xml b/pmd-jsp/pom.xml
index 5ebcbaaaa2..3c2d1c9eb1 100644
--- a/pmd-jsp/pom.xml
+++ b/pmd-jsp/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-kotlin/pom.xml b/pmd-kotlin/pom.xml
index 9c91119822..a2b41f0051 100644
--- a/pmd-kotlin/pom.xml
+++ b/pmd-kotlin/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-lang-test/pom.xml b/pmd-lang-test/pom.xml
index 52520ed9c9..4bfad5b8a9 100644
--- a/pmd-lang-test/pom.xml
+++ b/pmd-lang-test/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-lua/pom.xml b/pmd-lua/pom.xml
index ecbe9b67c5..3e81a7216d 100644
--- a/pmd-lua/pom.xml
+++ b/pmd-lua/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-matlab/pom.xml b/pmd-matlab/pom.xml
index 132b9c6a41..af7c929ce1 100644
--- a/pmd-matlab/pom.xml
+++ b/pmd-matlab/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-modelica/pom.xml b/pmd-modelica/pom.xml
index 5c3be1df60..b1bc8387c2 100644
--- a/pmd-modelica/pom.xml
+++ b/pmd-modelica/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-objectivec/pom.xml b/pmd-objectivec/pom.xml
index 2783d6817a..b12ae19491 100644
--- a/pmd-objectivec/pom.xml
+++ b/pmd-objectivec/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-perl/pom.xml b/pmd-perl/pom.xml
index 5ae65eb5dc..e990dde0a9 100644
--- a/pmd-perl/pom.xml
+++ b/pmd-perl/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-php/pom.xml b/pmd-php/pom.xml
index f4800eac8c..69362c0ab0 100644
--- a/pmd-php/pom.xml
+++ b/pmd-php/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-plsql/pom.xml b/pmd-plsql/pom.xml
index 707289b8df..f0681407c9 100644
--- a/pmd-plsql/pom.xml
+++ b/pmd-plsql/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-python/pom.xml b/pmd-python/pom.xml
index b8b3759af6..568a481245 100644
--- a/pmd-python/pom.xml
+++ b/pmd-python/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-ruby/pom.xml b/pmd-ruby/pom.xml
index f30afe4fa6..5975b9e1f2 100644
--- a/pmd-ruby/pom.xml
+++ b/pmd-ruby/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-scala-modules/pmd-scala-common/pom.xml b/pmd-scala-modules/pmd-scala-common/pom.xml
index 3c1e1c3aa7..bd278aadb3 100644
--- a/pmd-scala-modules/pmd-scala-common/pom.xml
+++ b/pmd-scala-modules/pmd-scala-common/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-scala-modules/pmd-scala_2.12/pom.xml b/pmd-scala-modules/pmd-scala_2.12/pom.xml
index dfa1368708..3a8e9d24ad 100644
--- a/pmd-scala-modules/pmd-scala_2.12/pom.xml
+++ b/pmd-scala-modules/pmd-scala_2.12/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd-scala-common</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pmd-scala-common/pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-scala-modules/pmd-scala_2.13/pom.xml b/pmd-scala-modules/pmd-scala_2.13/pom.xml
index da71270591..8c579d7658 100644
--- a/pmd-scala-modules/pmd-scala_2.13/pom.xml
+++ b/pmd-scala-modules/pmd-scala_2.13/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd-scala-common</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pmd-scala-common/pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-scala/pom.xml b/pmd-scala/pom.xml
index caaa746ba9..04618cabc5 100644
--- a/pmd-scala/pom.xml
+++ b/pmd-scala/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-swift/pom.xml b/pmd-swift/pom.xml
index 7632b8a40d..7d5ef5938a 100644
--- a/pmd-swift/pom.xml
+++ b/pmd-swift/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-test-schema/pom.xml b/pmd-test-schema/pom.xml
index 02e6b1e303..e97c026765 100644
--- a/pmd-test-schema/pom.xml
+++ b/pmd-test-schema/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <artifactId>pmd</artifactId>
         <groupId>net.sourceforge.pmd</groupId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-test/pom.xml b/pmd-test/pom.xml
index e964fda20e..d5e900ce50 100644
--- a/pmd-test/pom.xml
+++ b/pmd-test/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-visualforce/pom.xml b/pmd-visualforce/pom.xml
index 27ab62e969..b64095a14b 100644
--- a/pmd-visualforce/pom.xml
+++ b/pmd-visualforce/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-vm/pom.xml b/pmd-vm/pom.xml
index f2e18a2f8f..28110d71a1 100644
--- a/pmd-vm/pom.xml
+++ b/pmd-vm/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pmd-xml/pom.xml b/pmd-xml/pom.xml
index 4e51df9ec1..1aa05c364d 100644
--- a/pmd-xml/pom.xml
+++ b/pmd-xml/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.sourceforge.pmd</groupId>
         <artifactId>pmd</artifactId>
-        <version>6.51.0-SNAPSHOT</version>
+        <version>6.51.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index a6d461d9bb..bc43c6d1f0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>net.sourceforge.pmd</groupId>
     <artifactId>pmd</artifactId>
-    <version>6.51.0-SNAPSHOT</version>
+    <version>6.51.0</version>
     <packaging>pom</packaging>
     <name>PMD</name>
 
@@ -55,7 +55,7 @@
         <connection>scm:git:git://github.com/pmd/pmd.git</connection>
         <developerConnection>scm:git:ssh://git@github.com/pmd/pmd.git</developerConnection>
         <url>https://github.com/pmd/pmd</url>
-        <tag>HEAD</tag>
+        <tag>pmd_releases/6.51.0</tag>
     </scm>
     <distributionManagement>
         <snapshotRepository>
@@ -76,7 +76,7 @@
     </issueManagement>
 
     <properties>
-        <project.build.outputTimestamp>2022-09-30T13:39:13Z</project.build.outputTimestamp>
+        <project.build.outputTimestamp>2022-10-29T07:20:57Z</project.build.outputTimestamp>
 
         <java.version>7</java.version>