diff --git a/Gemfile.lock b/Gemfile.lock
index 106f426a..b84bd946 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -225,7 +225,7 @@ GEM
     mini_mime (1.1.5)
     mini_portile2 (2.8.4)
     minitest (5.19.0)
-    mnemosyne-ruby (1.14.0)
+    mnemosyne-ruby (1.15.0)
       activesupport (>= 4)
       bunny
     msgpack (1.7.2)