diff --git a/Gemfile b/Gemfile
index c2f31cf715c43fd3237271de6d8dcae423e442ee..edd1e909c89513875df34a5d44ca1c5a098fdc1c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -138,7 +138,7 @@ gem 'attr_encrypted', '~> 4.2', feature_category: :shared
 gem 'validates_hostname', '~> 1.0.13', feature_category: :pages
 gem 'rubyzip', '~> 2.4.0', require: 'zip', feature_category: :pages
 # GitLab Pages letsencrypt support
-gem 'acme-client', '~> 2.0.19', feature_category: :pages
+gem 'acme-client', '~> 2.0.23', feature_category: :pages
 
 # Browser detection
 gem 'browser', '~> 5.3.1', feature_category: :shared
diff --git a/Gemfile.lock b/Gemfile.lock
index 056c5b9cb7b44370e61a1461b8325e94e7a4fd4d..2898923a47198443f627f707faac4357ad263180 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2060,7 +2060,7 @@ PLATFORMS
 DEPENDENCIES
   CFPropertyList (~> 3.0.0)
   RedCloth (~> 4.3.3)
-  acme-client (~> 2.0.19)
+  acme-client (~> 2.0.23)
   activerecord-gitlab!
   addressable (~> 2.8)
   akismet (~> 3.0)
diff --git a/Gemfile.next.lock b/Gemfile.next.lock
index 5e8ee3d1588c94916837c6b5c0fc6500c1f2a3af..bcda938962040ff453a5e2b81c7b7002fa6be05f 100644
--- a/Gemfile.next.lock
+++ b/Gemfile.next.lock
@@ -2055,7 +2055,7 @@ PLATFORMS
 DEPENDENCIES
   CFPropertyList (~> 3.0.0)
   RedCloth (~> 4.3.3)
-  acme-client (~> 2.0.19)
+  acme-client (~> 2.0.23)
   activerecord-gitlab!
   addressable (~> 2.8)
   akismet (~> 3.0)