diff --git a/Dockerfile b/Dockerfile
index c9688b8f..e35b4c3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ ENV GOOGLEAPIS_HASH e47fdd266542386e5e7346697f90476e96dc7ee8
 ENV GAPIC_GENERATOR_HASH b32c73219d617f90de70bfa6ff0ea0b0dd638dfe
 # Define version number below. The ARTMAN_VERSION line is parsed by
 # .circleci/config.yml and setup.py, please keep the format.
-ENV ARTMAN_VERSION 0.45.1
+ENV ARTMAN_VERSION 0.46.0
 
 ENV DEBIAN_FRONTEND noninteractive