diff --git a/img2pdf/Dockerfile b/img2pdf/Dockerfile
index 09baa8f..2891d95 100644
--- a/img2pdf/Dockerfile
+++ b/img2pdf/Dockerfile
@@ -1,7 +1,7 @@
-FROM minidocks/python:3
+FROM minidocks/python
 LABEL maintainer="Martin Hasoň <martin.hason@gmail.com>"
 
-RUN apk add -u py3-pillow py3-pikepdf qpdf qpdf-fix-qdf && pip install img2pdf && clean
+RUN apk add -u py3-pillow py3-lxml qpdf qpdf-fix-qdf && pip install img2pdf && clean
 
 COPY rootfs /
 
diff --git a/ocrmypdf/Dockerfile b/ocrmypdf/Dockerfile
index 9d0ad9e..522293e 100644
--- a/ocrmypdf/Dockerfile
+++ b/ocrmypdf/Dockerfile
@@ -5,7 +5,7 @@ ARG version
 
 COPY rootfs /
 
-RUN apk -U add py3-cffi py3-defusedxml py3-reportlab libjpeg-turbo zlib pngquant jbig2enc && clean
+RUN apk -U add py3-cffi py3-cryptography py3-defusedxml py3-reportlab libjpeg-turbo zlib pngquant jbig2enc && clean
 
 RUN pip install ocrmypdf hocr-tools && clean