diff --git a/Gemfile.lock b/Gemfile.lock
index b3369eff..cc373342 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -393,10 +393,12 @@ GEM
       faraday (>= 1.0)
     shoulda-matchers (4.4.1)
       activesupport (>= 4.2.0)
-    simplecov (0.19.1)
+    simplecov (0.20.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.2)
     slim (4.1.0)
       temple (>= 0.7.6, < 0.9)
       tilt (>= 2.0.6, < 2.1)