diff --git a/Dockerfile b/Dockerfile
index 16f366b..9bfc567 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,8 @@ RUN apk add --no-cache \
     tk-dev \
     tcl-dev \
     libwebp-dev \
-    tesseract-ocr
+    tesseract-ocr \
+    tesseract-ocr-data-deu
 RUN python -m ensurepip --upgrade
 RUN pip install setuptools wheel
 RUN pip install -r requirements.txt