diff --git a/.github/workflows/bash.yml b/.github/workflows/bash.yml
index 803c1584aaa..b452f388a11 100644
--- a/.github/workflows/bash.yml
+++ b/.github/workflows/bash.yml
@@ -19,8 +19,8 @@ jobs:
 
       - name: Build Docker container
         run: |
-          docker build -t bash:test dockerfiles/bash/
-          docker run --name bash -v $(pwd -P):/root/cylc-flow --rm -t -d bash:test /bin/bash
+          docker build -t bash:test  -m 1G --memory-swap 1G dockerfiles/bash/
+          docker run --name bash -v $(pwd -P):/root/cylc-flow --rm -t -d -m 1G --memory-swap 1G bash:test /bin/bash
           docker ps -a
 
       - name: Install Cylc dependencies in the container
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 98e07bd3db8..9022b08fbc7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,10 +6,15 @@ on: [pull_request]
 jobs:
   fast-tests:
     runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental }}
     timeout-minutes: 15
     strategy:
       matrix:
         python-version: ['3.7', '3.8']
+        experimental: [false]
+        include:
+          - python-version: 3.9
+            experimental: true
     steps:
       - name: Checkout
         uses: actions/checkout@v2