diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index d2699d02ed0..2e2b9657800 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -79,3 +79,7 @@ regex==2021.8.28
 # anyio has a bug that was fixed in 3.3.1
 # can remove after httpx/httpcore updates its anyio version pin
 anyio>=3.3.1
+
+# websockets 10.0 is broken with AWS
+# https://github.com/aaugustin/websockets/issues/1065
+websockets==9.1
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index 939806d379e..3d2ace4c240 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -106,6 +106,10 @@ regex==2021.8.28
 # anyio has a bug that was fixed in 3.3.1
 # can remove after httpx/httpcore updates its anyio version pin
 anyio>=3.3.1
+
+# websockets 10.0 is broken with AWS
+# https://github.com/aaugustin/websockets/issues/1065
+websockets==9.1
 """
 
 IGNORE_PRE_COMMIT_HOOK_ID = (