diff --git a/Gemfile b/Gemfile
index faa568a..3dcce6b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,6 +5,6 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'irb'
-gem 'rake', '~> 13.0'
+gem 'rake', '~> 13.4'
 
 gem 'minitest', '~> 5.16'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b78c6b..ed89435 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
     psych (5.3.1)
       date
       stringio
-    rake (13.3.1)
+    rake (13.4.2)
     rdoc (7.2.0)
       erb
       psych (>= 4.0.0)
@@ -39,7 +39,7 @@ DEPENDENCIES
   date_values!
   irb
   minitest (~> 5.16)
-  rake (~> 13.0)
+  rake (~> 13.4)
 
 CHECKSUMS
   date (3.5.1) sha256=750d06384d7b9c15d562c76291407d89e368dda4d4fff957eb94962d325a0dc0
@@ -52,7 +52,7 @@ CHECKSUMS
   prettyprint (0.2.0) sha256=2bc9e15581a94742064a3cc8b0fb9d45aae3d03a1baa6ef80922627a0766f193
   prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
   psych (5.3.1) sha256=eb7a57cef10c9d70173ff74e739d843ac3b2c019a003de48447b2963d81b1974
-  rake (13.3.1) sha256=8c9e89d09f66a26a01264e7e3480ec0607f0c497a861ef16063604b1b08eb19c
+  rake (13.4.2) sha256=cb825b2bd5f1f8e91ca37bddb4b9aaf345551b4731da62949be002fa89283701
   rdoc (7.2.0) sha256=8650f76cd4009c3b54955eb5d7e3a075c60a57276766ebf36f9085e8c9f23192
   reline (0.6.3) sha256=1198b04973565b36ec0f11542ab3f5cfeeec34823f4e54cebde90968092b1835
   stringio (3.2.0) sha256=c37cb2e58b4ffbd33fe5cd948c05934af997b36e0b6ca6fdf43afa234cf222e1