diff --git a/Gemfile b/Gemfile
index f15a05c..cf20dad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -95,7 +95,7 @@ gem 'pundit', '~> 2.0'
 gem 'interactor', '~> 3.1'
 
 # A generalized Rack framework for multiple-provider authentication.
-gem 'omniauth', '~> 1.8'
+gem 'omniauth', '~> 1.9'
 
 # Official OmniAuth strategy for GitHub.
 gem 'omniauth-github', '~> 1.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index 725f654..05201a5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -459,7 +459,7 @@ DEPENDENCIES
   jquery-rails (~> 4.3)
   letter_opener (~> 1.6)
   listen (>= 3.0.5, < 3.2)
-  omniauth (~> 1.8)
+  omniauth (~> 1.9)
   omniauth-github (~> 1.3)
   pg (>= 0.18, < 2.0)
   pry-doc (~> 1.0)