diff --git a/examples/ext_authz/Dockerfile-opa b/examples/ext_authz/Dockerfile-opa
index 76a5cf7ec43f..7c5e544b987c 100644
--- a/examples/ext_authz/Dockerfile-opa
+++ b/examples/ext_authz/Dockerfile-opa
@@ -1 +1 @@
-FROM openpolicyagent/opa:0.55.0-istio@sha256:db7e2d32e5d11c51e2102a07021161aa061c0c22cc03e481063a03882af4b6c9
+FROM openpolicyagent/opa:0.57.1-istio@sha256:f76fb8c743d36265a58eae0dcc95a5587699c25a85afb0797dd6be88e77e3653