diff --git a/ext_authz/Dockerfile-opa b/ext_authz/Dockerfile-opa
index a5c63254..60e0c3ee 100644
--- a/ext_authz/Dockerfile-opa
+++ b/ext_authz/Dockerfile-opa
@@ -1,3 +1,3 @@
-FROM openpolicyagent/opa:1.16.1-envoy-2-static@sha256:3d57f13cba6ed5d16ff1c7faf6f3c944dc62bf495d1ae00b2abc5365970df201
+FROM openpolicyagent/opa:1.18.1-envoy-2-static@sha256:af2bcf2c474211d243740befef506f762fa0442bca26d68119366e424d1b8490
 
 COPY --chmod=644 ./config/opa-service/policy.rego /etc/policy.rego