diff --git a/Gemfile b/Gemfile
index f7cdbc7..d5e1b80 100644
--- a/Gemfile
+++ b/Gemfile
@@ -55,6 +55,6 @@ group :development, :test do
   gem "rake"
 
   # unit tests
-  gem "rspec", "~> 3.9.0"
-  gem "rspec-rails", "~> 3.9.0"
+  gem "rspec", "~> 3.10.0"
+  gem "rspec-rails", "~> 5.0.1"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 2d164c2..0d681c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
     crack (0.4.5)
       rexml
     crass (1.0.6)
-    diff-lcs (1.3)
+    diff-lcs (1.4.4)
     docile (1.4.0)
     erubi (1.10.0)
     ethon (0.12.0)
@@ -154,30 +154,30 @@ GEM
       ffi (~> 1.0)
     regexp_parser (2.1.1)
     rexml (3.2.5)
-    rspec (3.9.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
     rspec-collection_matchers (1.2.0)
       rspec-expectations (>= 2.99.0.beta1)
-    rspec-core (3.9.3)
-      rspec-support (~> 3.9.3)
-    rspec-expectations (3.9.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
+      rspec-support (~> 3.10.0)
     rspec-json_expectations (2.2.0)
-    rspec-mocks (3.9.0)
+    rspec-mocks (3.10.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-rails (3.9.0)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      railties (>= 3.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-      rspec-support (~> 3.9.0)
-    rspec-support (3.9.4)
+      rspec-support (~> 3.10.0)
+    rspec-rails (5.0.1)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
+      railties (>= 5.2)
+      rspec-core (~> 3.10)
+      rspec-expectations (~> 3.10)
+      rspec-mocks (~> 3.10)
+      rspec-support (~> 3.10)
+    rspec-support (3.10.2)
     rubocop (1.18.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
@@ -243,10 +243,10 @@ DEPENDENCIES
   pry
   pry-byebug
   rake
-  rspec (~> 3.9.0)
+  rspec (~> 3.10.0)
   rspec-collection_matchers (~> 1.2.0)
   rspec-json_expectations (~> 2.1)
-  rspec-rails (~> 3.9.0)
+  rspec-rails (~> 5.0.1)
   rubocop (= 1.18.0)
   rubocop-rails (= 2.11.1)
   simplecov (= 0.21.2)