diff --git a/requirements.txt b/requirements.txt
index 97b4e227..7592f024 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ argh==0.26.2
 arrow==0.12.1
 asn1crypto==0.24.0
 attrs==18.1.0
-Babel==2.6.0
+Babel==2.15.0
 backports.functools-lru-cache==1.5
 binaryornot==0.4.4
 bumpversion==0.5.3
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5404d8d3..10e5a5ae 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -3,7 +3,7 @@ argh==0.26.2
 arrow==0.12.1
 asn1crypto==0.24.0
 attrs==18.1.0
-Babel==2.6.0
+Babel==2.15.0
 backports.functools-lru-cache==1.5
 binaryornot==0.4.4
 bumpversion==0.5.3