diff --git a/pom.xml b/pom.xml
index 8928733..d68b159 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,7 +51,8 @@
     <maven.version>3.6.3</maven.version>
     <nexus.url>https://oss.sonatype.org</nexus.url>
     <repository.url>git@github.com:${project.github.repository}.git</repository.url>
-    <project.build.outputTimestamp>2023-03-24T10:11:47Z</project.build.outputTimestamp>
+    <!-- value comes from property git.commit.author.time -->
+    <project.build.outputTimestamp>${git.commit.author.time}</project.build.outputTimestamp>
     <version.antrun.plugin>3.0.0</version.antrun.plugin>
     <version.clean.plugin>3.2.0</version.clean.plugin>
     <version.compiler.plugin>3.11.0</version.compiler.plugin>