diff --git a/analysis_requirements.txt b/analysis_requirements.txt
index c485912..b7a7208 100644
--- a/analysis_requirements.txt
+++ b/analysis_requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.7
 audioread==2.1.4
-Babel==2.3.3
+Babel==2.9.1
 backports-abc==0.4
 backports.shutil-get-terminal-size==1.0.0
 backports.ssl-match-hostname==3.5.0.1