diff --git a/.github/workflows/conda.yml b/.github/workflows/conda.yml
index 7bbaf970f18..38961955cbe 100644
--- a/.github/workflows/conda.yml
+++ b/.github/workflows/conda.yml
@@ -49,7 +49,7 @@ jobs:
         New-Item -Name conda-forge.yml -ItemType File
         conda smithy regenerate
         
-        conda mambabuild -m .ci_support/win_64_.yaml .
+        conda mambabuild -m .ci_support/win_64_.yaml --build-only .
 
   conda-linux:
     runs-on: ubuntu-latest
@@ -83,4 +83,4 @@ jobs:
         touch conda-forge.yml
         conda smithy regenerate
         
-        conda mambabuild -m .ci_support/linux_64_.yaml .
+        conda mambabuild -m .ci_support/linux_64_.yaml --build-only .