diff --git a/.github/workflows/test-install.yml b/.github/workflows/test-install.yml
index d0b2432a91..1934e4467a 100644
--- a/.github/workflows/test-install.yml
+++ b/.github/workflows/test-install.yml
@@ -69,6 +69,14 @@ jobs:
       run:
         python -c "import aiida"
 
+    - name: Send Slack notification
+      if: ${{ failure() && github.event_name == 'schedule' }}
+      uses: kpritam/slack-job-status-action@v1
+      with:
+        job-status: ${{ job.status }}
+        slack-bot-token: ${{ secrets.SLACK_BOT_TOKEN }}
+        channel: dev-aiida-core
+
   install-with-conda:
 
     if: github.repository == 'aiidateam/aiida-core'
@@ -101,6 +109,14 @@ jobs:
         source activate test-environment
         python -c "import aiida"
 
+    - name: Send Slack notification
+      if: ${{ failure() && github.event_name == 'schedule' }}
+      uses: kpritam/slack-job-status-action@v1
+      with:
+        job-status: ${{ job.status }}
+        slack-bot-token: ${{ secrets.SLACK_BOT_TOKEN }}
+        channel: dev-aiida-core
+
   tests:
 
     needs: [install-with-pip, install-with-conda]
@@ -170,6 +186,14 @@ jobs:
       run:
         .github/workflows/tests.sh
 
+    - name: Send Slack notification
+      if: ${{ failure() && github.event_name == 'schedule' }}
+      uses: kpritam/slack-job-status-action@v1
+      with:
+        job-status: ${{ job.status }}
+        slack-bot-token: ${{ secrets.SLACK_BOT_TOKEN }}
+        channel: dev-aiida-core
+
     - name: Freeze test environment
       run: pip freeze | sed '1d' | tee requirements-py-${{ matrix.python-version }}.txt