diff --git a/Dockerfile b/Dockerfile
index 203fadf4..2154a7ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,6 @@
 # OCRmyPDF
 #
-# VERSION               4.4.2
-FROM      ubuntu:16.10
+FROM      ubuntu:17.04
 MAINTAINER James R. Barlow <jim@purplerock.ca>
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
diff --git a/Dockerfile.tess4 b/Dockerfile.tess4
index 76e6cc62..0d116edb 100644
--- a/Dockerfile.tess4
+++ b/Dockerfile.tess4
@@ -1,7 +1,6 @@
 # OCRmyPDF
 #
-# VERSION               4.4.2
-FROM 	ubuntu:16.10
+FROM 	ubuntu:17.04
 MAINTAINER James R. Barlow <jim@purplerock.ca>
 
 RUN apt-get update && apt-get install -y --no-install-recommends \