diff --git a/images/port_manager/Dockerfile b/images/port_manager/Dockerfile
index 0dbb535d0..5691216f8 100644
--- a/images/port_manager/Dockerfile
+++ b/images/port_manager/Dockerfile
@@ -22,7 +22,7 @@ RUN --mount=type=cache,target=/usr/local/cargo/registry <<EOF
   cargo build --release
 EOF
 
-FROM alpine:3.18.3 as runner
+FROM alpine:3.18.4 as runner
 
 RUN apk add --no-cache iptables