diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index 56e102aa33a..2c00a7ae28a 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -7,13 +7,14 @@ on:
       - run-in-docker.sh
       - pom.xml
       - modules/openapi-generator-online/pom.xml
+      - modules/openapi-generator-online/Dockerfile
   pull_request:
     paths:
       - Dockerfile
       - run-in-docker.sh
       - pom.xml
       - modules/openapi-generator-online/pom.xml
-
+      - modules/openapi-generator-online/Dockerfile
 jobs:
   build:
     name: 'Build: Docker'
@@ -26,7 +27,7 @@ jobs:
         shell: bash
         run: |
           sed -i 's/ -it / /g' run-in-docker.sh
-          ./run-in-docker.sh ./mvnw clean install
+          ./run-in-docker.sh mvn clean install
 
       - name: Build Dockerfile
         shell: bash
@@ -34,4 +35,5 @@ jobs:
 
       - name: Build modules/openapi-generator-online
         shell: bash
-        run: docker build modules/openapi-generator-online/
+        run: |
+          docker build modules/openapi-generator-online/ -t test
diff --git a/modules/openapi-generator-online/Dockerfile b/modules/openapi-generator-online/Dockerfile
index b20344ab3ef..6561db9442b 100644
--- a/modules/openapi-generator-online/Dockerfile
+++ b/modules/openapi-generator-online/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:8-jre-alpine
+FROM adoptopenjdk/openjdk11:alpine-jre
 
 WORKDIR /generator