diff --git a/pom.xml b/pom.xml
index f84aa20..b121acd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <stash.version>2.4.1</stash.version>
         <stash.data.version>2.4.1</stash.data.version>
-        <amps.version>4.2.0</amps.version>
+        <amps.version>4.2.3</amps.version>
         <plugin.testrunner.version>1.1.1</plugin.testrunner.version>
 
         <junit.version>4.10</junit.version>
diff --git a/src/main/java/com/englishtown/stash/hook/MirrorRepositoryHook.java b/src/main/java/com/englishtown/stash/hook/MirrorRepositoryHook.java
index 7cd9636..19b2fa1 100644
--- a/src/main/java/com/englishtown/stash/hook/MirrorRepositoryHook.java
+++ b/src/main/java/com/englishtown/stash/hook/MirrorRepositoryHook.java
@@ -114,11 +114,14 @@ public class MirrorRepositoryHook implements AsyncPostReceiveRepositoryHook, Rep
                         CommandExitHandler exitHandler = new GitCommandExitHandler(i18nService, repository);
                         PasswordHandler passwordHandler = new PasswordHandler(password, exitHandler);
 
-                        // Call push command with the mirror flag set
+                        // Call push command with the prune flag and refspecs for heads and tags
+                        // Do not use the mirror flag as pull-request refs are included
                         String result = builder
                                 .command("push")
-                                .argument("--mirror")
+                                .argument("--prune") // this deletes locally deleted branches
                                 .argument(authenticatedUrl.toString())
+                                .argument("+refs/heads/*:refs/heads/*") // Only mirror heads
+                                .argument("+refs/tags/*:refs/tags/*") // and tags
                                 .errorHandler(passwordHandler)
                                 .exitHandler(passwordHandler)
                                 .build(passwordHandler)
diff --git a/src/test/java/com/englishtown/stash/hook/MirrorRepositoryHookTest.java b/src/test/java/com/englishtown/stash/hook/MirrorRepositoryHookTest.java
index 1a4bdb6..7683de6 100644
--- a/src/test/java/com/englishtown/stash/hook/MirrorRepositoryHookTest.java
+++ b/src/test/java/com/englishtown/stash/hook/MirrorRepositoryHookTest.java
@@ -164,8 +164,10 @@ public class MirrorRepositoryHookTest {
         callable.call();
 
         verify(builder, times(1)).command(eq("push"));
-        verify(builder, times(1)).argument(eq("--mirror"));
+        verify(builder, times(1)).argument(eq("--prune"));
         verify(builder, times(1)).argument(eq(repository));
+        verify(builder, times(1)).argument(eq("+refs/heads/*:refs/heads/*"));
+        verify(builder, times(1)).argument(eq("+refs/tags/*:refs/tags/*"));
         verify(cmd, times(1)).call();
 
     }