diff --git a/Dockerfile b/Dockerfile
index 5824c56..53479f4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:3.12-slim
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    fontforge ttfautohint zip \
+    fontforge ttfautohint zip unzip \
     && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade pip