diff --git a/examples/ext_authz/Dockerfile-opa b/examples/ext_authz/Dockerfile-opa
index d40e0050f358..f3ed85f6e594 100644
--- a/examples/ext_authz/Dockerfile-opa
+++ b/examples/ext_authz/Dockerfile-opa
@@ -1 +1 @@
-FROM openpolicyagent/opa:0.51.0-istio@sha256:fb677a040a7d12f0ff4dea9025204068b7723c81d5d6bb2f5bc25db97e0b4d0c
+FROM openpolicyagent/opa:0.53.1-istio@sha256:b4821d33fdbca4fe3d2ff85e3f4a18d292f2fb32fe7db995b9239d7242702bab