diff --git a/build.gradle b/build.gradle
index f46336d..279d812 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,6 +17,7 @@
 import dorkbox.license.License
 
 import java.nio.file.Paths
+import java.time.Instant
 
 buildscript {
     // load properties from custom location
@@ -124,6 +125,15 @@ tasks.withType(JavaCompile) {
     options.incremental = true
 }
 
+tasks.withType(Jar) {
+    duplicatesStrategy DuplicatesStrategy.FAIL
+
+    manifest {
+        attributes['Implementation-Version'] = project.version
+        attributes['Build-Date'] = Instant.now().toString()
+    }
+}
+
 ///////////////////////////////
 //////    Plugin Publishing + Release
 ///////////////////////////////