diff --git a/Gemfile.lock b/Gemfile.lock
index c2cad83..0ea4422 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
       thor (>= 0.14.0)
     ast (2.4.1)
     concurrent-ruby (1.1.7)
-    diff-lcs (1.3)
+    diff-lcs (1.4.4)
     docile (1.3.2)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
@@ -35,19 +35,19 @@ GEM
     rake (13.0.1)
     regexp_parser (1.8.2)
     rexml (3.2.4)
-    rspec (3.9.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-    rspec-core (3.9.1)
-      rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.1)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.0)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-mocks (3.9.1)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-support (3.9.2)
+      rspec-support (~> 3.10.0)
+    rspec-support (3.10.0)
     rubocop (0.93.1)
       parallel (~> 1.10)
       parser (>= 2.7.1.5)