diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4dff17b3..e1474c29 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -73,7 +73,9 @@ jobs:
     runs-on:              ${{ matrix.os }}
     steps:
     - uses:               actions/checkout@v1
-    - uses:               conda-incubator/setup-miniconda@v2
+    - uses:               conda-incubator/setup-miniconda@v3
+      with:
+          auto-activate-base: true
     - name:               setup environment
       run:                bash -l UnitTests/before_install.sh
       env: