diff --git a/Gemfile b/Gemfile
index 31e61d522..475c1741f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'colorize'
-gem 'git', '~> 1.7.0'
+gem 'git', '~> 1.13.0'
 gem 'gnuplot'
 gem 'pry'
 gem 'pry-doc'
diff --git a/Gemfile.lock b/Gemfile.lock
index 07e02fb21..3009f4ad5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,6 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     builder (3.2.4)
     ci_reporter (2.0.0)
@@ -18,7 +20,8 @@ GEM
     concurrent-ruby (1.1.10)
     diff-lcs (1.5.0)
     docile (1.4.0)
-    git (1.7.0)
+    git (1.13.0)
+      addressable (~> 2.8)
       rchardet (~> 1.8)
     gnuplot (2.6.2)
     i18n (1.10.0)
@@ -34,6 +37,7 @@ GEM
     pry-doc (1.3.0)
       pry (~> 0.11)
       yard (~> 0.9.11)
+    public_suffix (5.0.1)
     rainbow (3.1.1)
     rake (13.0.6)
     rchardet (1.8.0)
@@ -88,13 +92,14 @@ GEM
 PLATFORMS
   aarch64-linux
   riscv64-linux
+  ruby
   x86_64-linux
 
 DEPENDENCIES
   activesupport (~> 5.2.0)
   ci_reporter_rspec
   colorize
-  git (~> 1.7.0)
+  git (~> 1.13.0)
   gnuplot
   pry
   pry-doc
@@ -104,4 +109,3 @@ DEPENDENCIES
   simplecov
   simplecov-rcov
   term-ansicolor
-