diff --git a/.circleci/unittest/linux/scripts/environment.yml b/.circleci/unittest/linux/scripts/environment.yml
index 77ee9929519..fae96c5f93c 100644
--- a/.circleci/unittest/linux/scripts/environment.yml
+++ b/.circleci/unittest/linux/scripts/environment.yml
@@ -13,4 +13,4 @@ dependencies:
   - pip:
     - future
     - scipy
-    - av
+    - av < 10
diff --git a/.circleci/unittest/windows/scripts/environment.yml b/.circleci/unittest/windows/scripts/environment.yml
index 0e07ae80d0d..d229aafb41a 100644
--- a/.circleci/unittest/windows/scripts/environment.yml
+++ b/.circleci/unittest/windows/scripts/environment.yml
@@ -14,6 +14,6 @@ dependencies:
   - pip:
     - future
     - scipy
-    - av != 9.1.1
+    - av !=9.1.1, <10
     - dataclasses
     - h5py
diff --git a/.github/workflows/test-m1.yml b/.github/workflows/test-m1.yml
index 1e5f79f82fd..c03fa9f76e4 100644
--- a/.github/workflows/test-m1.yml
+++ b/.github/workflows/test-m1.yml
@@ -37,7 +37,7 @@ jobs:
           conda create -yp ${ENV_NAME} python=${PY_VERS} numpy libpng jpeg scipy
           conda run -p ${ENV_NAME} python3 -mpip install --pre torch --extra-index-url=https://download.pytorch.org/whl/${CHANNEL}
           conda run -p ${ENV_NAME} python3 setup.py develop
-          conda run -p ${ENV_NAME} python3 -mpip install pytest pytest-mock av
+          conda run -p ${ENV_NAME} python3 -mpip install pytest pytest-mock 'av<10'
       - name: Run tests
         shell: arch -arch arm64 bash {0}
         env: