diff --git a/Dockerfile b/Dockerfile
index c17162e..7203287 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:alpine as golang
+FROM golang:1.15-alpine as golang
 WORKDIR /go/src/github.com/beevee/konturtransferbot
 COPY . .
 RUN apk add --no-cache git mercurial \
@@ -8,7 +8,7 @@ RUN apk add --no-cache git mercurial \
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o /go/bin/konturtransferbot github.com/beevee/konturtransferbot/cmd/konturtransferbot
 
 FROM alpine
-RUN apk add --no-cache ca-certificates && update-ca-certificates
+RUN apk add --no-cache tzdata ca-certificates && update-ca-certificates
 COPY cmd/konturtransferbot/schedule.yml /schedule.yml
 COPY --from=golang /go/bin/konturtransferbot /konturtransferbot
 ENTRYPOINT ["/konturtransferbot"]