diff --git a/Gemfile.lock b/Gemfile.lock
index 9f74811..b191976 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
       uri (>= 0.13.1)
     ast (2.4.3)
     base64 (0.2.0)
-    bcrypt (3.1.20)
+    bcrypt (3.1.21)
     benchmark (0.4.0)
     bigdecimal (3.1.9)
     brakeman (7.0.2)