diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e745cc1c14209e699fc38acf220b3e4f45be5a0..0f0f630b023b09f998fb9fe2902939cb9a32ba9f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,7 +46,7 @@ jobs:
             run: |
                 sudo apt-get update
                 sudo apt-get install openmpi-bin libopenmpi-dev
-                CONDA_ENVIRONMENT=.test-conda-env.yml
+                CONDA_ENVIRONMENT=.test-conda-env-py3.yml
                 curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/ci-support.sh
                 . ci-support.sh
                 build_py_project_in_conda_env