diff --git a/Gemfile.lock b/Gemfile.lock
index 5bd07e9c..e2b8fe22 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     multipart-post (2.0.0)
-    rake (10.5.0)
+    rake (13.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -92,7 +92,7 @@ DEPENDENCIES
   diplomat (>= 2.0.2)
   launchdarkly-server-sdk!
   listen (~> 3.0)
-  rake (~> 10.0)
+  rake (~> 13.0)
   redis (~> 3.3.5)
   rspec (~> 3.2)
   rspec_junit_formatter (~> 0.3.0)
diff --git a/launchdarkly-server-sdk.gemspec b/launchdarkly-server-sdk.gemspec
index 2e95cd41..bea5dbd7 100644
--- a/launchdarkly-server-sdk.gemspec
+++ b/launchdarkly-server-sdk.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "diplomat", ">= 2.0.2"
   spec.add_development_dependency "redis", "~> 3.3.5"
   spec.add_development_dependency "connection_pool", ">= 2.1.2"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec_junit_formatter", "~> 0.3.0"
   spec.add_development_dependency "timecop", "~> 0.9.1"
   spec.add_development_dependency "listen", "~> 3.0" # see file_data_source.rb