diff --git a/java-diff-utils.changes b/java-diff-utils.changes
index 65349a7..c0e6fdc 100644
--- a/java-diff-utils.changes
+++ b/java-diff-utils.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Sep 13 06:15:56 UTC 2023 - Fridrich Strba <fstrba@suse.com>
+
+- Reproducible builds: use SOURCE_DATE_EPOCH for timestamp
+
 -------------------------------------------------------------------
 Sat Apr 30 02:52:57 UTC 2022 - Anton Shvetz <shvetz.anton@gmail.com>
 
diff --git a/java-diff-utils.spec b/java-diff-utils.spec
index 8ea8831..aca2517 100644
--- a/java-diff-utils.spec
+++ b/java-diff-utils.spec
@@ -54,7 +54,8 @@ Group:          Documentation/HTML
 API documentation for %{name}.
 
 %build
-%{mvn_build} -f
+%{mvn_build} -f -- \
+    -Dproject.build.outputTimestamp=$(date -u -d @${SOURCE_DATE_EPOCH:-$(date +%%s)} +%%Y-%%m-%%dT%%H:%%M:%%SZ)
 
 %install
 %mvn_install