diff --git a/Gemfile b/Gemfile
index 423a9a64..b6c82ed0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -152,5 +152,5 @@ group :test do
   gem "simplecov", "~> 0.22.0"
   gem "simplecov-json", "~> 0.2.3"
 
-  gem "mock_redis", "~> 0.45.0"
+  gem "mock_redis", "~> 0.48.0"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 7955804e..e4bca1a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -402,7 +402,7 @@ GEM
     mini_mime (1.1.5)
     minitar (1.0.2)
     minitest (5.25.1)
-    mock_redis (0.45.0)
+    mock_redis (0.48.0)
     msgpack (1.7.2)
     multi_json (1.15.0)
     multi_xml (0.7.1)
@@ -759,7 +759,7 @@ DEPENDENCIES
   jsbundling-rails
   lograge
   memory_profiler
-  mock_redis (~> 0.45.0)
+  mock_redis (~> 0.48.0)
   mysql2 (~> 0.5)
   nla-blacklight_common!
   phonelib (~> 0.9.3)