diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 95b275ff..332ffeef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,21 +24,20 @@ jobs:
           - '3.1'
           - '3.0'
           - '2.7'
-          - '2.6'
-          - '2.5'
         gemfile:
           - rack_3
           - rack_2
+          - rails_8_1
           - rails_8_0
           - rails_7_2
           - rails_7_1
           - rails_7_0
-          - rails_6_1
-          - rails_6_0
           - dalli3
           - redis_5
           - redis_4
           - connection_pool_dalli
+          - active_support_8_1_redis_cache_store
+          - active_support_8_1_redis_cache_store_pooled
           - active_support_8_0_redis_cache_store
           - active_support_8_0_redis_cache_store_pooled
           - active_support_7_2_redis_cache_store
@@ -47,102 +46,62 @@ jobs:
           - active_support_7_1_redis_cache_store_pooled
           - active_support_7_0_redis_cache_store
           - active_support_7_0_redis_cache_store_pooled
-          - active_support_6_redis_cache_store
-          - active_support_6_redis_cache_store_pooled
           - redis_store
         exclude:
-          - gemfile: rails_6_0
-            ruby: '3.4'
-          - gemfile: active_support_6_redis_cache_store
-            ruby: '3.4'
-          - gemfile: active_support_6_redis_cache_store_pooled
-            ruby: '3.4'
-          - gemfile: rails_6_1
-            ruby: '3.4'
           - gemfile: rails_7_0
             ruby: '3.4'
-          - gemfile: rails_7_0
-            ruby: '2.6'
-          - gemfile: rails_7_0
-            ruby: '2.5'
           - gemfile: active_support_7_0_redis_cache_store
             ruby: '3.4'
-          - gemfile: active_support_7_0_redis_cache_store
-            ruby: '2.6'
-          - gemfile: active_support_7_0_redis_cache_store
-            ruby: '2.5'
           - gemfile: active_support_7_0_redis_cache_store_pooled
             ruby: '3.4'
-          - gemfile: active_support_7_0_redis_cache_store_pooled
-            ruby: '2.6'
-          - gemfile: active_support_7_0_redis_cache_store_pooled
-            ruby: '2.5'
-          - gemfile: rails_7_1
-            ruby: '2.6'
-          - gemfile: rails_7_1
-            ruby: '2.5'
-          - gemfile: active_support_7_1_redis_cache_store
-            ruby: '2.6'
-          - gemfile: active_support_7_1_redis_cache_store
-            ruby: '2.5'
-          - gemfile: active_support_7_1_redis_cache_store_pooled
-            ruby: '2.6'
-          - gemfile: active_support_7_1_redis_cache_store_pooled
-            ruby: '2.5'
           - gemfile: rails_7_2
             ruby: '3.0'
           - gemfile: rails_7_2
             ruby: '2.7'
-          - gemfile: rails_7_2
-            ruby: '2.6'
-          - gemfile: rails_7_2
-            ruby: '2.5'
           - gemfile: active_support_7_2_redis_cache_store
             ruby: '3.0'
           - gemfile: active_support_7_2_redis_cache_store
             ruby: '2.7'
-          - gemfile: active_support_7_2_redis_cache_store
-            ruby: '2.6'
-          - gemfile: active_support_7_2_redis_cache_store
-            ruby: '2.5'
           - gemfile: active_support_7_2_redis_cache_store_pooled
             ruby: '3.0'
           - gemfile: active_support_7_2_redis_cache_store_pooled
             ruby: '2.7'
-          - gemfile: active_support_7_2_redis_cache_store_pooled
-            ruby: '2.6'
-          - gemfile: active_support_7_2_redis_cache_store_pooled
-            ruby: '2.5'
           - gemfile: rails_8_0
             ruby: '3.1'
           - gemfile: rails_8_0
             ruby: '3.0'
           - gemfile: rails_8_0
             ruby: '2.7'
-          - gemfile: rails_8_0
-            ruby: '2.6'
-          - gemfile: rails_8_0
-            ruby: '2.5'
           - gemfile: active_support_8_0_redis_cache_store
             ruby: '3.1'
           - gemfile: active_support_8_0_redis_cache_store
             ruby: '3.0'
           - gemfile: active_support_8_0_redis_cache_store
             ruby: '2.7'
-          - gemfile: active_support_8_0_redis_cache_store
-            ruby: '2.6'
-          - gemfile: active_support_8_0_redis_cache_store
-            ruby: '2.5'
           - gemfile: active_support_8_0_redis_cache_store_pooled
             ruby: '3.1'
           - gemfile: active_support_8_0_redis_cache_store_pooled
             ruby: '3.0'
           - gemfile: active_support_8_0_redis_cache_store_pooled
             ruby: '2.7'
-          - gemfile: active_support_8_0_redis_cache_store_pooled
-            ruby: '2.6'
-          - gemfile: active_support_8_0_redis_cache_store_pooled
-            ruby: '2.5'
+          - gemfile: rails_8_1
+            ruby: '3.1'
+          - gemfile: rails_8_1
+            ruby: '3.0'
+          - gemfile: rails_8_1
+            ruby: '2.7'
+          - gemfile: active_support_8_1_redis_cache_store
+            ruby: '3.1'
+          - gemfile: active_support_8_1_redis_cache_store
+            ruby: '3.0'
+          - gemfile: active_support_8_1_redis_cache_store
+            ruby: '2.7'
+          - gemfile: active_support_8_1_redis_cache_store_pooled
+            ruby: '3.1'
+          - gemfile: active_support_8_1_redis_cache_store_pooled
+            ruby: '3.0'
+          - gemfile: active_support_8_1_redis_cache_store_pooled
+            ruby: '2.7'
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
     steps:
diff --git a/Appraisals b/Appraisals
index 1d978867..696ba67f 100644
--- a/Appraisals
+++ b/Appraisals
@@ -8,6 +8,10 @@ appraise "rack_2" do
   gem "rack", "~> 2.0"
 end
 
+appraise 'rails_8-1' do
+  gem 'railties', '~> 8.1.0'
+end
+
 appraise 'rails_8-0' do
   gem 'railties', '~> 8.0.0'
 end
@@ -24,14 +28,6 @@ appraise 'rails_7-0' do
   gem 'railties', '~> 7.0.0'
 end
 
-appraise 'rails_6-1' do
-  gem 'railties', '~> 6.1.0'
-end
-
-appraise 'rails_6-0' do
-  gem 'railties', '~> 6.0.0'
-end
-
 appraise 'dalli3' do
   gem 'dalli', '~> 3.0'
 end
@@ -49,6 +45,17 @@ appraise "connection_pool_dalli" do
   gem "dalli", "~> 3.0"
 end
 
+appraise "active_support_8-1_redis_cache_store" do
+  gem "activesupport", "~> 8.1.0"
+  gem "redis", "~> 5.0"
+end
+
+appraise "active_support_8-1_redis_cache_store_pooled" do
+  gem "activesupport", "~> 8.1.0"
+  gem "connection_pool", "~> 2.2"
+  gem "redis", "~> 5.0"
+end
+
 appraise "active_support_8-0_redis_cache_store" do
   gem "activesupport", "~> 8.0.0"
   gem "redis", "~> 5.0"
@@ -93,17 +100,6 @@ appraise "active_support_7-0_redis_cache_store_pooled" do
   gem "redis", "~> 5.0"
 end
 
-appraise "active_support_6_redis_cache_store" do
-  gem "activesupport", "~> 6.1.0"
-  gem "redis", "~> 5.0"
-end
-
-appraise "active_support_6_redis_cache_store_pooled" do
-  gem "activesupport", "~> 6.1.0"
-  gem "connection_pool", "~> 2.2"
-  gem "redis", "~> 5.0"
-end
-
 appraise "redis_store" do
   gem "redis-store", "~> 1.5"
 end
diff --git a/gemfiles/active_support_6_redis_cache_store.gemfile b/gemfiles/active_support_8_1_redis_cache_store.gemfile
similarity index 85%
rename from gemfiles/active_support_6_redis_cache_store.gemfile
rename to gemfiles/active_support_8_1_redis_cache_store.gemfile
index 72fb5b1d..57e0ff21 100644
--- a/gemfiles/active_support_6_redis_cache_store.gemfile
+++ b/gemfiles/active_support_8_1_redis_cache_store.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "activesupport", "~> 6.1.0"
+gem "activesupport", "~> 8.1.0"
 gem "redis", "~> 5.0"
 
 group :maintenance, optional: true do
diff --git a/gemfiles/active_support_6_redis_cache_store_pooled.gemfile b/gemfiles/active_support_8_1_redis_cache_store_pooled.gemfile
similarity index 87%
rename from gemfiles/active_support_6_redis_cache_store_pooled.gemfile
rename to gemfiles/active_support_8_1_redis_cache_store_pooled.gemfile
index 36a40f57..6e49595b 100644
--- a/gemfiles/active_support_6_redis_cache_store_pooled.gemfile
+++ b/gemfiles/active_support_8_1_redis_cache_store_pooled.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "activesupport", "~> 6.1.0"
+gem "activesupport", "~> 8.1.0"
 gem "connection_pool", "~> 2.2"
 gem "redis", "~> 5.0"
 
diff --git a/gemfiles/rails_6_1.gemfile b/gemfiles/rails_6_1.gemfile
deleted file mode 100644
index b1e5c039..00000000
--- a/gemfiles/rails_6_1.gemfile
+++ /dev/null
@@ -1,12 +0,0 @@
-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "railties", "~> 6.1.0"
-
-group :maintenance, optional: true do
-  gem "bake"
-  gem "bake-gem"
-end
-
-gemspec path: "../"
diff --git a/gemfiles/rails_6_0.gemfile b/gemfiles/rails_8_1.gemfile
similarity index 85%
rename from gemfiles/rails_6_0.gemfile
rename to gemfiles/rails_8_1.gemfile
index 679fea78..92df38d6 100644
--- a/gemfiles/rails_6_0.gemfile
+++ b/gemfiles/rails_8_1.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "railties", "~> 6.0.0"
+gem "railties", "~> 8.1.0"
 
 group :maintenance, optional: true do
   gem "bake"