diff --git a/logback.changes b/logback.changes
index f5d99e3..1d2ccdf 100644
--- a/logback.changes
+++ b/logback.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Sep  9 14:35:55 UTC 2023 - Fridrich Strba <fstrba@suse.com>
+
+- Reproducible builds: use SOURCE_DATE_EPOCH for timestamp
+
 -------------------------------------------------------------------
 Thu Apr 28 04:54:39 UTC 2022 - Fridrich Strba <fstrba@suse.com>
 
diff --git a/logback.spec b/logback.spec
index abbca4b..91bbb17 100644
--- a/logback.spec
+++ b/logback.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package logback
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -119,6 +119,7 @@ rm -r %{name}-*/src/test/java/*
 %build
 
 %{mvn_build} -f -- \
+    -Dproject.build.outputTimestamp=$(date -u -d @${SOURCE_DATE_EPOCH:-$(date +%%s)} +%%Y-%%m-%%dT%%H:%%M:%%SZ)
 %if %{?pkg_vcmp:%pkg_vcmp java-devel >= 9}%{!?pkg_vcmp:0}
     -Dmaven.compiler.release=8 \
 %endif