diff --git a/Gemfile.lock b/Gemfile.lock
index dade08c..f2ae068 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.3)
-    docile (1.1.5)
+    docile (1.3.2)
     dry-configurable (0.7.0)
       concurrent-ruby (~> 1.0)
     dry-container (0.6.0)
@@ -87,7 +87,6 @@ GEM
     ice_nine (0.11.2)
     inflecto (0.0.2)
     jmespath (1.3.1)
-    json (2.1.0)
     method_source (0.9.0)
     minitest (5.10.3)
     net-scp (1.2.1)
@@ -133,11 +132,10 @@ GEM
     rubocop-rspec (1.21.0)
       rubocop (>= 0.52.0)
     ruby-progressbar (1.9.0)
-    simplecov (0.15.1)
-      docile (~> 1.1.0)
-      json (>= 1.8, < 3)
-      simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.2)
+    simplecov (0.18.1)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11.0)
+    simplecov-html (0.11.0)
     single_cov (0.7.0)
     sshkit (1.15.1)
       net-scp (>= 1.1.2)