diff --git a/Gemfile.lock b/Gemfile.lock
index 2030e6d..c6ef2cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    signature (1.0.0)
+    signature (0.2.0)
 
 GEM
   remote: https://rubygems.org/
@@ -38,4 +38,4 @@ DEPENDENCIES
   signature!
 
 BUNDLED WITH
-   2.4.22
+   2.5.6