diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 285840b..ff3cb12 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 2.7, 3.0, head, jruby ]
+        ruby: [ 2.7, 3.0, 3.1, 3.2, 3.3, 3.4, jruby ]
         os: [ ubuntu ]
 
     name: >-
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f547eaa..f25ad96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # SortedSet Changelog
 
+## 1.0.4 (2025-02-24)
+
+* Enhancements
+  * Allow using `set` version 1.1.1.
+  * Update github actions, add testing Ruby 3.1-3.4. 
+
 ## 1.0.3 (2021-02-13)
 
 * Enhancements
diff --git a/sorted_set.gemspec b/sorted_set.gemspec
index e66f598..8c189ca 100644
--- a/sorted_set.gemspec
+++ b/sorted_set.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   spec.name          = "sorted_set"
-  spec.version       = "1.0.3"
+  spec.version       = "1.0.4"
   spec.authors       = ["Akinori MUSHA"]
   spec.email         = ["knu@idaemons.org"]
 
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
   if defined?(JRUBY_VERSION)
     spec.platform = "java"
   else
-    spec.add_runtime_dependency "set", "~> 1.0"
+    spec.add_runtime_dependency "set", ">= 1.0", "< 1.2.0"
     spec.add_runtime_dependency "rbtree"
   end
 end