diff --git a/xml-commons-apis-bootstrap.changes b/xml-commons-apis-bootstrap.changes
index f95a471..5328b85 100644
--- a/xml-commons-apis-bootstrap.changes
+++ b/xml-commons-apis-bootstrap.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Sep 24 10:20:55 UTC 2024 - Fridrich Strba <fstrba@suse.com>
+
+- Use SOURCE_DATE_EPOCH for reproducible builds
+
 -------------------------------------------------------------------
 Wed Feb 21 16:14:29 UTC 2024 - Fridrich Strba <fstrba@suse.com>
 
diff --git a/xml-commons-apis-bootstrap.spec b/xml-commons-apis-bootstrap.spec
index 7152ced..e001108 100644
--- a/xml-commons-apis-bootstrap.spec
+++ b/xml-commons-apis-bootstrap.spec
@@ -124,8 +124,13 @@ function compileFiles() {
 # PARAM#1: name of jar archive (without .jar suffix)
 # uses $TARGET_DIR to move created jar to
 function mkJar() {
-  find  -name "version.txt" -or -name "*.class" -or -name "*.properties" -or -name "*.rsc" |\
-    xargs jar cfm ${1}.jar manifest.* ;
+  jar  \
+%if %{?pkg_vcmp:%pkg_vcmp java-devel >= 17}%{!?pkg_vcmp:0}
+    --date="$(date -u -d @${SOURCE_DATE_EPOCH:-$(date +%%s)} +%%Y-%%m-%%dT%%H:%%M:%%SZ)" \
+%endif
+    --create --file=${1}.jar \
+    `find  -name "version.txt" -or -name "*.class" -or -name "*.properties" -or -name "*.rsc" |\
+    xargs` ;
   mv ${1}.jar $TARGET_DIR
 }
 #<<<