diff --git a/.github/workflows/dockerhub.yml b/.github/workflows/dockerhub.yml
index e4d995e..cee580d 100644
--- a/.github/workflows/dockerhub.yml
+++ b/.github/workflows/dockerhub.yml
@@ -10,8 +10,9 @@
 name: Publish Docker image
 
 on:
-  release:
-    types: [published]
+  push:
+    tags:
+      - "*"
 
 jobs:
   push_to_registry:
@@ -21,6 +22,16 @@ jobs:
       - name: Check out the repo
         uses: actions/checkout@v3
       
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+      
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+      
       - name: Log in to Docker Hub
         uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
         with:
diff --git a/Dockerfile b/Dockerfile
index 284279a..c3c9100 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
-FROM opensearchproject/opensearch:latest
-COPY target/releases/SynonymsPlugin-2.6.0.0.zip /tmp
-RUN /usr/share/opensearch/bin/opensearch-plugin install --batch file:///tmp/SynonymsPlugin-2.6.0.0.zip
+FROM opensearchproject/opensearch:2.8.0
+COPY target/releases/SynonymsPlugin-2.8.0.0.zip /tmp
+RUN /usr/share/opensearch/bin/opensearch-plugin install --batch file:///tmp/SynonymsPlugin-2.8.0.0.zip
diff --git a/pom.xml b/pom.xml
index 155d341..b68584a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>io.telicent.opensearch</groupId>
 	<artifactId>SynonymsPlugin</artifactId>
-	<version>2.6.0.0</version>
+	<version>2.8.0.0</version>
 	<description>A plugin for OpenSearch providing an index-backed synonym
 		handler</description>
 	<properties>
@@ -13,7 +13,7 @@
 		<testcontainer.version>1.17.6</testcontainer.version>
 		<git-code-format-maven-plugin.version>4.2</git-code-format-maven-plugin.version>
 		<jackson.version>2.14.2</jackson.version>
-		<opensearch.version>2.6.0</opensearch.version>
+		<opensearch.version>2.8.0</opensearch.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	</properties>
 	<build>
diff --git a/src/test/java/io/telicent/opensearch/IndexedSynonymParserTest.java b/src/test/java/io/telicent/opensearch/IndexedSynonymParserTest.java
index 6fd932d..c409788 100644
--- a/src/test/java/io/telicent/opensearch/IndexedSynonymParserTest.java
+++ b/src/test/java/io/telicent/opensearch/IndexedSynonymParserTest.java
@@ -54,7 +54,7 @@ private void setup(boolean security) throws Exception {
         // https://github.com/opensearch-project/opensearch-testcontainers
 
         String version = System.getProperty("opensearch-version");
-        if (version == null) version = "2.6.0";
+        if (version == null) version = "2.8.0";
         LOG.info("Starting docker instance of OpenSearch {}...", version);
 
         container = new OpensearchContainer("opensearchproject/opensearch:" + version);