diff --git a/pip_requirements.txt b/pip_requirements.txt
index 36a0a1d..2431372 100644
--- a/pip_requirements.txt
+++ b/pip_requirements.txt
@@ -18,7 +18,7 @@ atari-py==0.2.6
 atomicwrites==1.3.0
 attrs==19.3.0
 autopep8==1.4.4
-Babel==2.8.0
+Babel==2.9.1
 backcall==0.1.0
 backports.functools-lru-cache==1.6.1
 backports.shutil-get-terminal-size==1.0.0