diff --git a/Dockerfile b/Dockerfile
index 9242331..775bfdd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.16.3-alpine AS builder
+FROM golang:1.16.4-alpine AS builder
 
 RUN apk add --update --no-cache ca-certificates git
 RUN apk add build-base
diff --git a/Dockerfile.debug b/Dockerfile.debug
index 06eeb65..18adf4f 100644
--- a/Dockerfile.debug
+++ b/Dockerfile.debug
@@ -1,4 +1,4 @@
-FROM golang:1.16.3-alpine AS builder
+FROM golang:1.16.4-alpine AS builder
 
 RUN apk add --update --no-cache ca-certificates git
 RUN go get github.com/derekparker/delve/cmd/dlv gcc