diff --git a/Gemfile b/Gemfile
index 9830a17..bf62135 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,7 +30,7 @@ gem 'lti_provider_engine', '~> 1.1.0', require: 'lti_provider'
 gem 'canvas_oauth_engine', '~> 2.1.0', require: 'canvas_oauth'
 gem 'httparty', '~> 0.15'
 
-gem 'aws-sdk-s3', '~> 1.0'
+gem 'aws-sdk-s3', '~> 1.20'
 gem 'redis', '~> 4.0'
 gem 'redis-objects', '~> 1.0'
 gem 'resque', '~> 1.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7c5654b..b6ec761 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,17 +48,17 @@ GEM
     aroi (0.0.6)
       rails (>= 3.2, < 5.3)
     aws-eventstream (1.0.1)
-    aws-partitions (1.97.0)
-    aws-sdk-core (3.24.0)
+    aws-partitions (1.105.0)
+    aws-sdk-core (3.29.0)
       aws-eventstream (~> 1.0)
       aws-partitions (~> 1.0)
       aws-sigv4 (~> 1.0)
       jmespath (~> 1.0)
-    aws-sdk-kms (1.7.0)
-      aws-sdk-core (~> 3)
+    aws-sdk-kms (1.9.0)
+      aws-sdk-core (~> 3, >= 3.26.0)
       aws-sigv4 (~> 1.0)
-    aws-sdk-s3 (1.17.0)
-      aws-sdk-core (~> 3, >= 3.21.2)
+    aws-sdk-s3 (1.20.0)
+      aws-sdk-core (~> 3, >= 3.26.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.0)
     aws-sigv4 (1.0.3)
@@ -431,7 +431,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  aws-sdk-s3 (~> 1.0)
+  aws-sdk-s3 (~> 1.20)
   bootsnap (~> 1.0)
   brakeman
   bundler (>= 1.7.10)