diff --git a/Dockerfile b/Dockerfile
index 7b0de02..b3e1b9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,4 +12,5 @@ COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
 USER timetracker
 EXPOSE 8000
+ENV VERSION_NUMBER $(git describe --tags --abbrev=0)
 ENTRYPOINT [ "/entrypoint.sh" ]
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