diff --git a/Gemfile.lock b/Gemfile.lock
index caec3a0..24ad8db 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.7.1)
       slop (>= 2.4.4, < 3)
-    rake (0.9.2.2)
+    rake (13.0.1)
     randexp (0.1.7)
     rb-fchange (0.0.5)
       ffi
@@ -98,11 +98,6 @@ GEM
       diff-lcs (~> 1.1.3)
     rspec-mocks (2.10.1)
     sexp_processor (3.2.0)
-    simplecov (0.6.4)
-      multi_json (~> 1.0)
-      simplecov-html (~> 0.5.3)
-    simplecov-html (0.5.3)
-    simplecov-vim (0.0.1)
     slop (2.4.4)
     thor (0.15.2)
     webmock (1.8.7)
@@ -135,7 +130,5 @@ DEPENDENCIES
   pry
   rb-readline
   rspec
-  simplecov
-  simplecov-vim
   webmock
   yard (~> 0.6.0)