diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 066d660a9..8e91c4cfe 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -111,7 +111,7 @@ jobs:
       - name: Run Admin server
         run: make run-flask &
         env:
-          API_HOST_NAME: https://notify-api-staging.app.cloud.gov
+          API_HOST_NAME: https://notify-api-staging.app.cloud.gov/
           # API_HOST_NAME: http://localhost:6011
           DANGEROUS_SALT: ${{ secrets.DANGEROUS_SALT }}
           SECRET_KEY: ${{ secrets.SECRET_KEY }}
@@ -121,7 +121,7 @@ jobs:
           NOTIFY_E2E_AUTH_STATE_PATH: ${{ secrets.NOTIFY_E2E_AUTH_STATE_PATH }}
           NOTIFY_E2E_TEST_EMAIL: ${{ secrets.NOTIFY_E2E_TEST_EMAIL }}
           NOTIFY_E2E_TEST_PASSWORD: ${{ secrets.NOTIFY_E2E_TEST_PASSWORD }}
-          NOTIFY_E2E_TEST_URI: http://localhost:6012
+          NOTIFY_E2E_TEST_URI: http://localhost:6012/
       - name: Run E2E tests
         # Run the E2E tests against the code found in this PR.
         # run: poetry run pytest -v --browser chromium --browser firefox --browser webkit tests/end_to_end
@@ -130,7 +130,7 @@ jobs:
         # Debugging for now to troubleshoot a connectivity issue to the local servers
         # run: curl --request GET --url "http://localhost:6012"
         env:
-          API_HOST_NAME: https://notify-api-staging.app.cloud.gov
+          API_HOST_NAME: https://notify-api-staging.app.cloud.gov/
           # API_HOST_NAME: http://localhost:6011
           DANGEROUS_SALT: ${{ secrets.DANGEROUS_SALT }}
           SECRET_KEY: ${{ secrets.SECRET_KEY }}
@@ -140,7 +140,7 @@ jobs:
           NOTIFY_E2E_AUTH_STATE_PATH: ${{ secrets.NOTIFY_E2E_AUTH_STATE_PATH }}
           NOTIFY_E2E_TEST_EMAIL: ${{ secrets.NOTIFY_E2E_TEST_EMAIL }}
           NOTIFY_E2E_TEST_PASSWORD: ${{ secrets.NOTIFY_E2E_TEST_PASSWORD }}
-          NOTIFY_E2E_TEST_URI: http://localhost:6012
+          NOTIFY_E2E_TEST_URI: http://localhost:6012/
 
   validate-new-relic-config:
     runs-on: ubuntu-latest