diff --git a/.github/workflows/generate_api_pages.yml b/.github/workflows/generate_api_pages.yml
index d2293634..b1892c66 100644
--- a/.github/workflows/generate_api_pages.yml
+++ b/.github/workflows/generate_api_pages.yml
@@ -1,5 +1,8 @@
 name: generate api pages
 on:
+  push:
+    branches:
+      - fix/workflow-with-java-version-set
   workflow_dispatch:
     inputs:
       tag:
@@ -24,6 +27,12 @@ jobs:
       - name: Install swagger-codegen
         run: brew install swagger-codegen
 
+      - name: Set up JDK 11
+        uses: actions/setup-java@v2
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+
       - name: Npm install
         run: npm install