diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 23f60ad..ab99b7a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,6 +14,8 @@ jobs:
         - '3.0'
         - '3.1'
         - '3.2'
+        - '3.3'
+        - '3.4'
         gemfile:
         - rbs1
         - rbs2
diff --git a/Gemfile.lock b/Gemfile.lock
index 203f48f..9912ac4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    docile (1.4.0)
+    docile (1.4.1)
     logger (1.7.0)
     minitest (5.25.5)
     prettier_print (1.2.1)
@@ -20,13 +20,14 @@ GEM
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.12.3)
+    simplecov-html (0.13.1)
     simplecov_json_formatter (0.1.4)
     syntax_tree (6.2.0)
       prettier_print (>= 1.2.0)
 
 PLATFORMS
   arm64-darwin-21
+  arm64-darwin-23
   x86_64-linux
 
 DEPENDENCIES