diff --git a/Gemfile b/Gemfile
index 47260c897e..465987c327 100644
--- a/Gemfile
+++ b/Gemfile
@@ -91,7 +91,7 @@ gem 'activejob-uniqueness', '~> 0.2.5'
 gem 'bcrypt', '~> 3.1.20'
 gem 'cancancan', '~> 3.5.0'
 gem 'charlock_holmes', '~> 0.7.7'
-gem 'dalli', '~> 3.2.7'
+gem 'dalli', '~> 3.2.8'
 gem 'exception_notification', '~> 4.5.0'
 gem 'fancybox-rails', '~> 0.3.0'
 gem 'friendly_id', '~> 5.5.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 46890771f3..53ccd262ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,6 @@ GEM
       faraday (~> 0.9)
       faraday_middleware (~> 0.10)
       nokogiri (~> 1.6, >= 1.6.8)
-    base64 (0.2.0)
     bcrypt (3.1.20)
     bindex (0.8.1)
     bootstrap-sass (2.3.2.2)
@@ -199,8 +198,7 @@ GEM
       rexml
     crass (1.0.6)
     daemons (1.4.1)
-    dalli (3.2.7)
-      base64
+    dalli (3.2.8)
     dante (0.2.0)
     date (3.3.3)
     declarative (0.0.20)
@@ -595,7 +593,7 @@ DEPENDENCIES
   capistrano (~> 2.15.11)
   capybara (~> 3.40.0)
   charlock_holmes (~> 0.7.7)
-  dalli (~> 3.2.7)
+  dalli (~> 3.2.8)
   excel_analyzer!
   exception_notification (~> 4.5.0)
   factory_bot_rails (~> 6.4.3)