diff --git a/Gemfile.lock b/Gemfile.lock
index cc7ac6a9..8f23f860 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,7 +72,7 @@ GEM
       minitest-autotest (~> 1.0)
     autotest-rails (4.2.1)
       ZenTest (~> 4.5)
-    bcrypt (3.1.13)
+    bcrypt (3.1.15)
     bcrypt_pbkdf (1.0.1)
     better_errors (2.7.1)
       coderay (>= 1.0.0)