diff --git a/Dockerfile b/Dockerfile
index 2a4ccc4..015cadf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:3.19
 WORKDIR /srv
 RUN echo "@testing https://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
-RUN apk add --no-cache py3-pelican@testing make
+RUN apk add --no-cache py3-pelican@testing make tzdata
 COPY . /srv/
 RUN make publish