diff --git a/.github/workflows/macos-linux-conda.yml b/.github/workflows/macos-linux-conda.yml
index 01fd930c9e47b729f2c2ad766e21db502865ad64..3c8ae31f4e91d9045ff366a0ca417e1e20d7ad66 100644
--- a/.github/workflows/macos-linux-conda.yml
+++ b/.github/workflows/macos-linux-conda.yml
@@ -46,7 +46,7 @@ jobs:
       shell: bash -l {0}
       run: |
         conda activate eigenpy
-        conda install cmake -c main
+        conda install cmake -c conda-forge
         conda list
 
     - name: Build EigenPy