diff --git a/Gemfile.lock b/Gemfile.lock
index f8520cfc..7d3dc93c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,7 +75,7 @@ GEM
     brakeman (4.3.1)
     builder (3.2.4)
     byebug (10.0.2)
-    cancancan (2.2.0)
+    cancancan (3.1.0)
     capybara (2.18.0)
       addressable
       mini_mime (>= 0.1.3)