diff --git a/.github/workflows/testsuite.yml b/.github/workflows/testsuite.yml
index 56388979d..e7038343c 100644
--- a/.github/workflows/testsuite.yml
+++ b/.github/workflows/testsuite.yml
@@ -179,7 +179,7 @@ jobs:
           git remote add upstream https://github.com/brian-team/brian2 && \
           git fetch --tags --force upstream
       - name: Setup Conda and Python
-        uses: conda-incubator/setup-miniconda@fc2d68f6413eb2d87b895e92f8584b5b94a10167 # v3.3.0
+        uses: conda-incubator/setup-miniconda@8ee1f361103df19b6f8c8655fd3967a8ecb162d5 # v4.0.1
         with:
           conda-remove-defaults: true
           auto-update-conda: true