diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index dff49d5b..6d6fbf35 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -69,6 +69,11 @@ jobs:
             toxfactor: py3.15
             ignore-typecheck-outcome: false
             ignore-test-outcome: false
+          # Python 3.16 is in development; allow failures until it is stable
+          - python-version: "3.16-dev"
+            toxfactor: py3.16
+            ignore-typecheck-outcome: true
+            ignore-test-outcome: true
 
     steps:
       - uses: actions/checkout@v4