diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c28fc8a..b7e8c62 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,6 +1,6 @@
 name: urchin tests
 
-on: [push]
+on: [pull_request, push]
 
 permissions:
   contents: read
@@ -31,6 +31,7 @@ jobs:
         suite:
           - install_script
           - sourcing
+          - fast
         shell:
           - sh
           - bash
diff --git a/.travis.yml b/.travis.yml
index 07cada9..1cfc0b9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -82,11 +82,6 @@ env:
     - PATH="/usr/lib/ccache/:$PATH"
     - NVM_DIR="${TRAVIS_BUILD_DIR}"
   matrix:
-    - SHELL=sh TEST_SUITE=fast
-    - SHELL=dash TEST_SUITE=fast
-    - SHELL=bash TEST_SUITE=fast
-    - SHELL=zsh TEST_SUITE=fast
-    #  - SHELL=ksh TEST_SUITE=fast
     - SHELL=sh TEST_SUITE=slow
     - SHELL=dash TEST_SUITE=slow
     - SHELL=bash TEST_SUITE=slow