diff --git a/curl-jq/Dockerfile b/curl-jq/Dockerfile
index 18aea95..a18be99 100644
--- a/curl-jq/Dockerfile
+++ b/curl-jq/Dockerfile
@@ -1,3 +1,3 @@
-FROM alpine:3.16
+FROM alpine:3.18
 
 RUN apk add --no-cache ca-certificates tzdata curl bash jq
diff --git a/exiftool/Dockerfile b/exiftool/Dockerfile
index 6d4522d..0a7a9eb 100644
--- a/exiftool/Dockerfile
+++ b/exiftool/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:3.18
 
 COPY VERSION /tmp/VERSION
 
diff --git a/oauth2-proxy/Dockerfile b/oauth2-proxy/Dockerfile
index eb2a534..be25f0e 100644
--- a/oauth2-proxy/Dockerfile
+++ b/oauth2-proxy/Dockerfile
@@ -22,7 +22,7 @@ RUN GO111MODULE=on go mod download
 RUN VERSION=$(cat /tmp/VERSION) make build && touch jwt_signing_key.pem
 
 # Copy binary to alpine
-FROM alpine:3.16
+FROM alpine:3.18
 COPY --from=builder /etc/nsswitch.conf /etc/nsswitch.conf
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 COPY --from=builder /go/src/github.com/oauth2-proxy/oauth2-proxy/oauth2-proxy /bin/oauth2-proxy
diff --git a/restic-robot/Dockerfile b/restic-robot/Dockerfile
index 57ebec7..97f61cf 100644
--- a/restic-robot/Dockerfile
+++ b/restic-robot/Dockerfile
@@ -6,7 +6,7 @@ RUN git clone https://github.com/Southclaws/restic-robot.git .
 
 RUN CGO_ENABLED=0 GOOS=linux go build
 
-FROM alpine:3.16
+FROM alpine:3.18
 RUN apk add --no-cache ca-certificates tzdata restic mysql-client
 COPY --from=builder /go/src/github.com/southclaws/restic-robot/restic-robot /usr/bin/restic-robot
 ENTRYPOINT ["/usr/bin/restic-robot"]