diff --git a/Gemfile.lock b/Gemfile.lock
index 9090997..a70d9bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.3)
-    docile (1.3.2)
+    docile (1.3.4)
     dotenv (2.7.5)
     dotenv-rails (2.7.5)
       dotenv (= 2.7.5)
@@ -124,7 +124,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.2.0)
+    json (2.5.1)
     launchy (2.4.3)
       addressable (~> 2.3)
     leaflet-rails (1.0.3)
@@ -227,11 +227,12 @@ GEM
     simple_form (4.0.0)
       actionpack (> 4)
       activemodel (> 4)
-    simplecov (0.17.0)
+    simplecov (0.21.0)
       docile (~> 1.1)
-      json (>= 1.8, < 3)
-      simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.2)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.2)
     spring (2.1.0)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)