diff --git a/Dockerfile b/Dockerfile
index daed411..ad8cb1b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM codait/max-base:v1.1.3
+FROM codait/max-base:v1.3.2
 
 RUN apt-get update \
      && apt-get install -y \
@@ -20,4 +20,7 @@ COPY . /workspace
 
 EXPOSE 5000
 
+# this is needed for tesseract versions prior to 4.1 (https://github.com/tesseract-ocr/tesseract/issues/1670#issuecomment-515324015)
+ENV LC_ALL=C
+
 CMD python /workspace/app.py