diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c9185252..d72a01da 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,11 +50,13 @@ jobs:
         with:
           path: artifacts
       - name: Merge artifacts
+        id: merge
         run: |
+          rm -rf tmp JVips.jar
           mkdir tmp
-          (cd tmp; unzip -uo ../artifacts/jar-macos/JVips.jar)
-          (cd tmp; unzip -uo ../artifacts/jar-linux-windows/JVips.jar)
-          jar -cvf JVips.jar -C tmp .
+          (cd tmp; for jar in ../artifacts/*/JVips.jar; do unzip -uo $jar; done)
+          jar -cvMf JVips.jar -C tmp .
+          echo ::set-output name=jar_version::$(grep 'Implementation-Version' tmp/META-INF/MANIFEST.MF | cut -d ':' -f2)
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
@@ -66,8 +68,8 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          tag_name: latest
-          release_name: Latest
+          tag_name: ${{ steps.merge.outputs.jar_version }}
+          release_name: ${{ steps.merge.outputs.jar_version }}
           draft: false
           prerelease: false
       - name: Upload release asset
diff --git a/build.sh b/build.sh
index 1bc37f4e..59b071cc 100755
--- a/build.sh
+++ b/build.sh
@@ -158,8 +158,12 @@ if [ ${BUILD_MACOS} -gt 0 ]; then
     popd
 fi
 
+source lib/variables.sh
+VERSION="$VIPS_VERSION-$(git rev-parse --short HEAD)"
 
+mvn ${MAVEN_ARGS} -DnewVersion=$VERSION versions:set
 mvn ${MAVEN_ARGS} -DskipTests clean package
+mvn ${MAVEN_ARGS} versions:revert
 
 if [ ${RUN_TEST} -gt 0 ]; then
     mvn ${MAVEN_ARGS} surefire:test@utest
diff --git a/pom.xml b/pom.xml
index 97b0861c..7a77bfe8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>JVips</groupId>
     <artifactId>JVips</artifactId>
-    <version>1.0.1</version>
+    <version>0.0.0-SNAPSHOT</version>
     <profiles>
         <profile>
             <id>all</id>
@@ -73,8 +73,18 @@
                 <configuration>
                     <outputDirectory>${project.basedir}</outputDirectory>
                     <finalName>JVips</finalName>
+                    <archive>
+                        <manifest>
+                            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
+                        </manifest>
+                    </archive>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>versions-maven-plugin</artifactId>
+                <version>2.7</version>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>