diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 917b385..555d226 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,8 +13,6 @@ jobs:
             os: ubuntu-22.04
           - ruby: 3.1
             os: ubuntu-20.04
-          - ruby: "3.0"
-            os: ubuntu-20.04
     env:
       LIBTORCH_VERSION: 2.3.0
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cdd5e3..80b2a62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 - Updated LibTorch to 2.3.0
 - Added `ELU` and `GELU` classes
+- Dropped support for Ruby < 3.1
 
 ## 0.15.0 (2024-02-28)
 
diff --git a/torch-rb.gemspec b/torch-rb.gemspec
index a7c8cf7..143dab6 100644
--- a/torch-rb.gemspec
+++ b/torch-rb.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.require_path  = "lib"
   spec.extensions    = ["ext/torch/extconf.rb"]
 
-  spec.required_ruby_version = ">= 3"
+  spec.required_ruby_version = ">= 3.1"
 
   spec.add_dependency "rice", ">= 4.1.0"
 end