diff --git a/Gemfile.lock b/Gemfile.lock
index 3969539a0..74f9082da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -414,11 +414,11 @@ GEM
       thor (~> 0.14)
     selectize-rails (0.12.1)
     sexp_processor (4.8.0)
-    simplecov (0.10.0)
+    simplecov (0.15.1)
       docile (~> 1.1.0)
-      json (~> 1.8)
+      json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.0)
+    simplecov-html (0.10.2)
     simpleidn (0.0.7)
     sinatra (1.4.8)
       rack (~> 1.5)