diff --git a/Containerfile b/Containerfile
index 405ef23..184f124 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/golang:1.24-alpine3.21 AS builder
+FROM docker.io/golang:1.24-alpine3.22 AS builder
 
 RUN echo "ntfy:x:2222:2222:Linux User,,,:/:/ntfy" > /passwd
 RUN mkdir -p /data/attachments
@@ -17,7 +17,6 @@ WORKDIR /go/ntfy
 RUN git checkout "$VERSION"
 
 ENV CGO_CFLAGS="-D_LARGEFILE64_SOURCE"
-ENV GOPROXY="gocenter.io"
 
 RUN make web
 RUN make web-build