diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9ebbf42..ad9bce1 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -19,4 +19,4 @@ m2r==0.2.1
 codecov>=1.4.0
 codacy-coverage==1.3.11
 twine>=1.13.0
-readme_renderer[md]==25.0
+readme_renderer[md]==42.0