diff --git a/.github/workflows/pyflask-build-and-dist-tests.yml b/.github/workflows/pyflask-build-and-dist-tests.yml
index 983d87f87..bbf9e4f93 100644
--- a/.github/workflows/pyflask-build-and-dist-tests.yml
+++ b/.github/workflows/pyflask-build-and-dist-tests.yml
@@ -38,7 +38,7 @@ jobs:
 
           - python-version: "3.9"
             os: macos-13  # Mac x64 runner
-            label: environments/environment-MAC-arm64.yml
+            label: environments/environment-MAC.yml
             prefix: /Users/runner/miniconda3/envs/nwb-guide
 
           - python-version: "3.9"
@@ -89,7 +89,7 @@ jobs:
       - run: npm ci --verbose
 
       # fix for macos build
-      - if: matrix.os == 'macos-latest'
+      - if: matrix.os == 'macos-latest' || matrix.os == 'macos-13'
         run: rm -f /Users/runner/miniconda3/envs/nwb-guide/lib/python3.9/site-packages/sonpy/linux/sonpy.so
 
       - name: Build PyFlask distribution