diff --git a/logback-access/pom.xml b/logback-access/pom.xml
index 7a267f87cb..8a3f38e8e1 100755
--- a/logback-access/pom.xml
+++ b/logback-access/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ch.qos.logback</groupId>
     <artifactId>logback-parent</artifactId>
-    <version>1.3.15-SNAPSHOT</version>
+    <version>1.3.15</version>
   </parent>
 
   <artifactId>logback-access</artifactId>
diff --git a/logback-classic-blackbox/pom.xml b/logback-classic-blackbox/pom.xml
index 458d85574c..e78861231c 100644
--- a/logback-classic-blackbox/pom.xml
+++ b/logback-classic-blackbox/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-parent</artifactId>
-        <version>1.3.15-SNAPSHOT</version>
+        <version>1.3.15</version>
     </parent>
 
     <artifactId>logback-classic-blackbox</artifactId>
diff --git a/logback-classic/pom.xml b/logback-classic/pom.xml
index ca34732c5a..fd1042769e 100755
--- a/logback-classic/pom.xml
+++ b/logback-classic/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ch.qos.logback</groupId>
     <artifactId>logback-parent</artifactId>
-    <version>1.3.15-SNAPSHOT</version>
+    <version>1.3.15</version>
   </parent>
 
   <artifactId>logback-classic</artifactId>
diff --git a/logback-core-blackbox/pom.xml b/logback-core-blackbox/pom.xml
index e44422b4a3..36ae7eec7c 100644
--- a/logback-core-blackbox/pom.xml
+++ b/logback-core-blackbox/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-parent</artifactId>
-        <version>1.3.15-SNAPSHOT</version>
+        <version>1.3.15</version>
     </parent>
 
     <artifactId>logback-core-blackbox</artifactId>
diff --git a/logback-core/pom.xml b/logback-core/pom.xml
index 6caf927c79..7e73d5f3b5 100755
--- a/logback-core/pom.xml
+++ b/logback-core/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ch.qos.logback</groupId>
     <artifactId>logback-parent</artifactId>
-    <version>1.3.15-SNAPSHOT</version>
+    <version>1.3.15</version>
   </parent>
 
   <artifactId>logback-core</artifactId>
diff --git a/logback-examples/pom.xml b/logback-examples/pom.xml
index 616ba01c84..6fdb51a664 100755
--- a/logback-examples/pom.xml
+++ b/logback-examples/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ch.qos.logback</groupId>
     <artifactId>logback-parent</artifactId>
-    <version>1.3.15-SNAPSHOT</version>
+    <version>1.3.15</version>
   </parent>
 
   <artifactId>logback-examples</artifactId>
diff --git a/pom.xml b/pom.xml
index c073049841..edd7f5203b 100755
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
 
   <groupId>ch.qos.logback</groupId>
   <artifactId>logback-parent</artifactId>
-  <version>1.3.15-SNAPSHOT</version>
+  <version>1.3.15</version>
   <packaging>pom</packaging>
 
   <name>Logback-Parent</name>
@@ -49,7 +49,7 @@
 
   <properties>
     <!-- yyyy-MM-dd'T'HH:mm:ss'Z' -->
-    <project.build.outputTimestamp>2023-12-04T15:51:26Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2024-12-28T13:05:00Z</project.build.outputTimestamp>
 
     <!-- minimal JDK version at runtime -->
     <jdk.version>8</jdk.version>