diff --git a/examples/ext_authz/Dockerfile-opa b/examples/ext_authz/Dockerfile-opa
index 70847d7d5ae27..76a5cf7ec43f2 100644
--- a/examples/ext_authz/Dockerfile-opa
+++ b/examples/ext_authz/Dockerfile-opa
@@ -1 +1 @@
-FROM openpolicyagent/opa:0.53.0-istio@sha256:dcf28d23b3d1919b6314ef34342687c558cec64fe4f93fa484e8c8e82824d56d
+FROM openpolicyagent/opa:0.55.0-istio@sha256:db7e2d32e5d11c51e2102a07021161aa061c0c22cc03e481063a03882af4b6c9