3 files changed, 13 insertions, 7 deletions
diff --git a/.github/workflows/api.yml b/.github/workflows/build-api.yml
index ae67b753..5bbc30c4 100644
--- a/.github/workflows/api.yml
+++ b/.github/workflows/build-api.yml
@@ -1,9 +1,11 @@
-name: REST API
+name: Build API
 
 on:
   push:
     paths:
       - 'api/**'
+  pull_request:
+    branches: [master]
 
 defaults:
   run:
diff --git a/.github/workflows/frontend.yml b/.github/workflows/build-frontend.yml
index da6f1031..73ab49d5 100644
--- a/.github/workflows/frontend.yml
+++ b/.github/workflows/build-frontend.yml
@@ -1,9 +1,11 @@
-name: Frontend
+name: Build Frontend
 
 on:
   push:
     paths:
       - 'frontend/**'
+  pull_request:
+    branches: [master]
 
 defaults:
   run:
@@ -15,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node: [12.x]
+        node: [14.x]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Node.js
diff --git a/.github/workflows/simulator.yml b/.github/workflows/build-simulator.yml
index 8174ae3a..57e8b46d 100644
--- a/.github/workflows/simulator.yml
+++ b/.github/workflows/build-simulator.yml
@@ -1,9 +1,11 @@
-name: Simulator
+name: Build Simulator
 
 on:
   push:
     paths:
       - 'simulator/**'
+  pull_request:
+    branches: [master]
 
 defaults:
   run:
@@ -15,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        java: [14]
+        java: [8, 15]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -28,9 +30,9 @@ jobs:
       - uses: actions/cache@v1
         with:
           path: ~/.gradle/caches
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          key: ${{ runner.os }}-${{ matrix.java }}-gradle-${{ hashFiles('**/*.gradle*') }}
           restore-keys: |
-            ${{ runner.os }}-gradle-
+            ${{ runner.os }}-${{ matrix.java }}-gradle-
       - name: Build with Gradle
         run: ./gradlew assemble
       - name: Check with Gradle