diff --git a/Gemfile b/Gemfile
index dd119f98b..087f24a07 100644
--- a/Gemfile
+++ b/Gemfile
@@ -37,7 +37,7 @@ gem "simple_captcha2", "0.5.0", require: "simple_captcha"
 
 # Background processing
 
-gem "redis", "4.2.5"
+gem "redis", "4.3.1"
 gem "sidekiq", "6.2.1"
 
 # Scheduled processing
diff --git a/Gemfile.lock b/Gemfile.lock
index aa64b7617..0ce108c81 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -611,7 +611,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.5.1)
-    redis (4.2.5)
+    redis (4.3.1)
     regexp_parser (2.1.1)
     request_store (1.5.0)
       rack (>= 1.4)
@@ -899,7 +899,7 @@ DEPENDENCIES
   rails-i18n (= 5.1.3)
   rails-timeago (= 2.19.1)
   redcarpet (= 3.5.1)
-  redis (= 4.2.5)
+  redis (= 4.3.1)
   responders (= 3.0.1)
   rqrcode (= 1.1.2)
   rspec-json_expectations (~> 2.1)