diff --git a/translation_caching/requirements.txt b/translation_caching/requirements.txt
index e98f40a..1c51cad 100644
--- a/translation_caching/requirements.txt
+++ b/translation_caching/requirements.txt
@@ -61,7 +61,7 @@ pyasn1-modules==0.2.1
 pytz==2017.3
 redis==2.10.6
 requests==2.18.4
-rsa==3.4.2
+rsa==4.7
 six==1.11.0
 tornado==4.5.2
 uritemplate==3.0.0