diff --git a/Gemfile.lock b/Gemfile.lock
index 02476d5..c8bf5b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
     docile (1.4.0)
     power_assert (2.0.2)
     rake (13.0.6)
-    simplecov (0.21.2)
+    simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)