diff --git a/ga_base/requirements.txt b/ga_base/requirements.txt
index 4e53659..c6a87e6 100644
--- a/ga_base/requirements.txt
+++ b/ga_base/requirements.txt
@@ -30,7 +30,7 @@ django-storages==1.1.8
 django-tastypie
 django-timedeltafield==0.7.0
 docutils==0.11
-ecdsa==0.10
+ecdsa==0.13.3
 filebrowser-safe==0.3.1
 future==0.9.0
 geojson==1.0.5