diff --git a/cloudevents-server/Dockerfile b/cloudevents-server/Dockerfile
index 8d3272c..106da73 100644
--- a/cloudevents-server/Dockerfile
+++ b/cloudevents-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.4 AS builder
+FROM golang:1.21.5 AS builder
 COPY . /app
 RUN cd /app && go build -o server