diff --git a/docs/test-version.md b/docs/test-version.md
index 64aa1abc0..26a2903f3 100644
--- a/docs/test-version.md
+++ b/docs/test-version.md
@@ -15,5 +15,5 @@ The following Gateway API version and Ingress were tested as part of the release
 
 | Ingress | Tested version          | Unavailable features           |
 | ------- | ----------------------- | ------------------------------ |
-| Istio   | v1.21.1     | retry,httpoption   |
+| Istio   | v1.22.0     | retry,httpoption   |
 | Contour | v1.29.0    | httpoption |
diff --git a/hack/test-env.sh b/hack/test-env.sh
index c9e73a010..c54de153c 100755
--- a/hack/test-env.sh
+++ b/hack/test-env.sh
@@ -15,7 +15,7 @@
 # limitations under the License.
 
 export GATEWAY_API_VERSION="v1.0.0"
-export ISTIO_VERSION="1.21.1"
+export ISTIO_VERSION="1.22.0"
 export ISTIO_UNSUPPORTED_E2E_TESTS="retry,httpoption"
 export CONTOUR_VERSION="v1.29.0"
 export CONTOUR_UNSUPPORTED_E2E_TESTS="httpoption"