diff --git a/Gemfile b/Gemfile
index c4404f2..0dea098 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem "rest-client", ">= 1.7.3"
 gem 'mongo', '~> 2.4.0'
 gem "rack", ">= 1.6.11"
 gem "newrelic_rpm", "~> 3.8.1.221"
-gem "oauth", "~> 0.4.7"
+gem "oauth", "~> 0.5.5"
 gem "nokogiri", ">= 1.8.5"
 gem 'postmark', '~> 1.2.0'
 gem "mail", ">= 2.5.5"
diff --git a/Gemfile.lock b/Gemfile.lock
index 86dae79..b11e3d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,7 +35,7 @@ GEM
     newrelic_rpm (3.8.1.221)
     nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
-    oauth (0.4.7)
+    oauth (0.5.5)
     postmark (1.2.1)
       json
       rake
@@ -86,7 +86,7 @@ DEPENDENCIES
   mongo (~> 2.4.0)
   newrelic_rpm (~> 3.8.1.221)
   nokogiri (>= 1.8.5)
-  oauth (~> 0.4.7)
+  oauth (~> 0.5.5)
   postmark (~> 1.2.0)
   rack (>= 1.6.11)
   rest-client (>= 1.7.3)