diff --git a/Dockerfile b/Dockerfile
index a9359cb..77aa0fe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,4 +14,8 @@ RUN go build -o bin/tgbuser \
 FROM alpine AS runner
 COPY --from=builder /app/bin/tgbuser /usr/bin/
 WORKDIR /app
+RUN apk --no-cache add --no-check-certificate ca-certificates \
+    && update-ca-certificates
+RUN apk add --no-cache tzdata
+
 ENTRYPOINT /usr/bin/tgbuser