diff --git a/Dockerfile b/Dockerfile
index c23a572a..d53e65cc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ COPY . /server/
 WORKDIR /server/
 RUN go build -o ./bin/postee main.go
 
-FROM alpine:3.16.2
+FROM alpine:3.16.3
 RUN apk update && apk add wget ca-certificates curl jq
 EXPOSE 8082
 EXPOSE 8445
diff --git a/Dockerfile.release b/Dockerfile.release
index 982959e4..492d0085 100644
--- a/Dockerfile.release
+++ b/Dockerfile.release
@@ -1,4 +1,4 @@
-FROM alpine:3.16.2
+FROM alpine:3.16.3
 RUN  apk add --no-cache wget ca-certificates
 EXPOSE 8082
 EXPOSE 8445
diff --git a/Dockerfile.ui b/Dockerfile.ui
index 35d51f56..89706dc6 100644
--- a/Dockerfile.ui
+++ b/Dockerfile.ui
@@ -13,7 +13,7 @@ WORKDIR /server/ui/backend
 RUN apk add git
 RUN go build -o posteeui
 
-FROM alpine:3.16.2
+FROM alpine:3.16.3
 EXPOSE 8001
 
 RUN mkdir /uiserver