diff --git a/Gemfile.lock b/Gemfile.lock
index cc057a8..99a4127 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,7 +32,6 @@ GEM
     concurrent-ruby (1.3.7)
     connection_pool (2.5.5)
     diff-lcs (1.6.2)
-    docile (1.4.0)
     drb (2.2.3)
     excon (0.111.0)
     faker (3.6.1)
@@ -195,12 +194,7 @@ GEM
       faraday (>= 0.17.3, < 3)
     securerandom (0.4.1)
     shellany (0.0.1)
-    simplecov (0.22.0)
-      docile (~> 1.1)
-      simplecov-html (~> 0.11)
-      simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.12.3)
-    simplecov_json_formatter (0.1.4)
+    simplecov (1.0.0)
     sshkey (2.0.0)
     thor (1.5.0)
     tzinfo (2.0.6)