diff --git a/Gemfile.lock b/Gemfile.lock
index e1fefad..c12d2d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,9 +3,9 @@ GEM
   specs:
     addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
-    ansi (1.5.0)
+    ansi (1.6.0)
     bigdecimal (4.1.2)
-    builder (3.2.2)
+    builder (3.3.0)
     coveralls (0.8.15)
       json (>= 1.8, < 3)
       simplecov (~> 0.12.0)
@@ -24,16 +24,16 @@ GEM
     json (2.3.0)
     mini_mime (1.1.5)
     minitest (5.9.1)
-    minitest-reporters (1.1.12)
+    minitest-reporters (1.8.0)
       ansi
       builder
-      minitest (>= 5.0)
+      minitest (>= 5.0, < 7)
       ruby-progressbar
     multi_xml (0.9.1)
       bigdecimal (>= 3.1, < 5)
     public_suffix (7.0.5)
     rake (12.3.3)
-    ruby-progressbar (1.8.1)
+    ruby-progressbar (1.13.0)
     safe_yaml (1.0.4)
     simplecov (0.12.0)
       docile (~> 1.1.0)