diff --git a/.github/workflows/build-test-prValidation.yml b/.github/workflows/build-test-prValidation.yml
index fd8552257b..b84938397a 100644
--- a/.github/workflows/build-test-prValidation.yml
+++ b/.github/workflows/build-test-prValidation.yml
@@ -102,6 +102,53 @@ jobs:
           -Dio.netty.leakDetection.level=PARANOID \
           validatePullRequest
 
+  pekko-classic-remoting-tests:
+    name: Pekko Classic Remoting Tests
+    runs-on: ubuntu-22.04
+    if: github.repository == 'apache/pekko'
+    strategy:
+      fail-fast: false
+      matrix:
+        command:
+          - cluster/test distributed-data/test cluster-tools/test cluster-metrics/test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          # we don't know what commit the last tag was it's safer to get entire repo so previousStableVersion resolves
+          fetch-depth: 0
+          fetch-tags: true
+
+      - name: Setup Java 11
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 11
+
+      - name: Install sbt
+        uses: sbt/setup-sbt@v1
+
+      - name: Cache Coursier cache
+        uses: coursier/cache-action@v6
+
+      - name: Enable jvm-opts
+        run: cp .jvmopts-ci .jvmopts
+
+      - name: sbt ${{ matrix.command }}
+        env:
+          DEVELOCITY_ACCESS_KEY: ${{ secrets.GE_ACCESS_TOKEN }}
+        # note that this is not running any multi-jvm tests because multi-in-test=false
+        run: |-
+          sbt \
+          -Djava.security.egd=file:/dev/./urandom \
+          -Dpekko.remote.artery.enabled=off \
+          -Dpekko.test.timefactor=2 \
+          -Dpekko.actor.testkit.typed.timefactor=2 \
+          -Dpekko.test.tags.exclude=gh-exclude,timing \
+          -Dpekko.test.multi-in-test=false \
+          -Dpekko.cluster.assert=on \
+          clean ${{ matrix.command }}
+          
   jdk-21-extra-tests:
     name: Java 21 Extra Tests (including all tests that need Java 9+)
     runs-on: ubuntu-22.04
diff --git a/.github/workflows/nightly-builds.yml b/.github/workflows/nightly-builds.yml
index c473d1d1d0..12cb31073c 100644
--- a/.github/workflows/nightly-builds.yml
+++ b/.github/workflows/nightly-builds.yml
@@ -3,7 +3,6 @@ name: Nightly Builds
 on:
   schedule:
     - cron: "0 0 * * *"
-  pull_request:
   workflow_dispatch:
 
 permissions: {}