diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 1c8bd20f..d13f870d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -56,7 +56,9 @@ jobs:
       - name: Install dependencies
         run: |
             python -m pip install --upgrade pip wheel
-            python -m pip install -q hatch pre-commit asv
+            # NOTE: pin virtualenv to <20.31 until asv fixes it.
+            # See https://github.com/airspeed-velocity/asv/issues/1484
+            python -m pip install -q hatch pre-commit asv virtualenv==20.30
             hatch --version
 
       ###########################################
diff --git a/.github/workflows/pr-benchmark-generate.yml b/.github/workflows/pr-benchmark-generate.yml
index 650e64a7..ff92ad5f 100644
--- a/.github/workflows/pr-benchmark-generate.yml
+++ b/.github/workflows/pr-benchmark-generate.yml
@@ -39,7 +39,9 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install asv
+        # NOTE: pin virtualenv to <20.31 until asv fixes it.
+        # See https://github.com/airspeed-velocity/asv/issues/1484
+        pip install asv virtualenv==20.30
 
     - name: Run benchmarks
       run: |
diff --git a/requirements-ci.in b/requirements-ci.in
index f0a40de4..0dc19c65 100644
--- a/requirements-ci.in
+++ b/requirements-ci.in
@@ -5,6 +5,9 @@ requests
 types-requests
 whitenoise
 asv
+# NOTE: pin virtualenv to <20.31 until asv fixes integration
+# See https://github.com/airspeed-velocity/asv/issues/1484
+virtualenv==20.30
 pytest-asyncio
 pytest-django
 typing-extensions>=4.12.2
\ No newline at end of file
diff --git a/requirements-dev.in b/requirements-dev.in
index 30ec419b..92a17c62 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -18,4 +18,7 @@ whitenoise
 pygments
 pygments-djc
 asv
+# NOTE: pin virtualenv to <20.31 until asv fixes integration
+# See https://github.com/airspeed-velocity/asv/issues/1484
+virtualenv==20.30
 typing-extensions>=4.12.2
\ No newline at end of file