diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 783bde8e..f7ddc25c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,8 +54,9 @@ jobs:
           platform: ubuntu-latest
         - python: "3.10"
           platform: ubuntu-latest
-        - python: pypy3.9
-          platform: ubuntu-latest
+        # disabled for #463
+        # - python: pypy3.9
+        #   platform: ubuntu-latest
     runs-on: ${{ matrix.platform }}
     continue-on-error: ${{ matrix.python == '3.12' }}
     steps: