diff --git a/.github/workflows/stubtest.yml b/.github/workflows/stubtest.yml
index fa11d7969..a81e4bdda 100644
--- a/.github/workflows/stubtest.yml
+++ b/.github/workflows/stubtest.yml
@@ -33,7 +33,9 @@ jobs:
       - name: Update pip
         run: python -m pip install -U pip
       - name: Install dependencies
-        run: pip install $(grep tomli== requirements-tests.txt) $(grep mypy== requirements-tests.txt)
+        # Temporarily hard-code the mypy version used for stubtest
+        # run: pip install $(grep tomli== requirements-tests.txt) (grep mypy== requirements-tests.txt)
+        run: pip install mypy==0.910
       - name: Run stubtest
         run: python tests/stubtest_stdlib.py
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b125705e5..589faaa9a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -109,7 +109,9 @@ jobs:
       - name: Update pip
         run: python -m pip install -U pip
       - name: Install dependencies
-        run: pip install $(grep tomli== requirements-tests.txt) $(grep mypy== requirements-tests.txt)
+        # Temporarily hard-code the mypy version used for stubtest
+        # run: pip install $(grep tomli== requirements-tests.txt) (grep mypy== requirements-tests.txt)
+        run: pip install mypy==0.910
       - name: Run stubtest
         run: python tests/stubtest_stdlib.py
 
diff --git a/requirements-tests.txt b/requirements-tests.txt
index f3ea0a2b8..318c0358a 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -1,4 +1,4 @@
-mypy==0.910
+mypy==0.920
 pytype==2021.11.29; platform_system != "Windows"
 # must match .pre-commit-config.yaml
 black==21.12b0