diff --git a/Dockerfile b/Dockerfile
index 87ea7ea..8886352 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
-RUN go build -buildvcs=false -o /smtprelay
+RUN CGO_ENABLED=0 go build -buildvcs=false -o /smtprelay
 
 # Stage 2: Package
 FROM scratch