diff --git a/requirements.txt b/requirements.txt
index 4df5891..afc75f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ astroquery==0.3.8
 atomicwrites==1.2.1
 attrs==18.2.0
 Automat==0.7.0
-Babel==2.6.0
+Babel==2.9.1
 backcall==0.1.0
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.6.3
diff --git a/wisps/requirements.txt b/wisps/requirements.txt
index 4df5891..afc75f5 100644
--- a/wisps/requirements.txt
+++ b/wisps/requirements.txt
@@ -14,7 +14,7 @@ astroquery==0.3.8
 atomicwrites==1.2.1
 attrs==18.2.0
 Automat==0.7.0
-Babel==2.6.0
+Babel==2.9.1
 backcall==0.1.0
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.6.3