diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5424298d..d352b2aa 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,9 +7,11 @@ jobs:
     strategy:
       matrix:
         python:
-        - 3.7
-        - 3.9
-        - "3.10"
+        # Build on pre-releases until stable, then stable releases.
+        # actions/setup-python#213
+        - ~3.7.0-0
+        - ~3.10.0-0
+        - ~3.11.0-0
         platform:
         - ubuntu-latest
         - macos-latest