diff --git a/template/Gemfile b/template/Gemfile
index 5151523..7dbe1d7 100644
--- a/template/Gemfile
+++ b/template/Gemfile
@@ -7,7 +7,7 @@ ruby ">= 2.6.10"
 gem 'cocoapods', '>= 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'activesupport', '>= 6.1.7.5', '!= 7.1.0'
 gem 'xcodeproj', '< 1.26.0'
-gem 'concurrent-ruby', '< 1.3.4'
+gem 'concurrent-ruby', '< 1.3.9'
 
 # Ruby 3.4.0 has removed some libraries from the standard library.
 gem 'bigdecimal'
diff --git a/template/Gemfile.lock b/template/Gemfile.lock
index cfdbd45..689dca9 100644
--- a/template/Gemfile.lock
+++ b/template/Gemfile.lock
@@ -63,12 +63,13 @@ GEM
       netrc (~> 0.11)
     cocoapods-try (1.2.0)
     colored2 (3.1.2)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.3.8)
     connection_pool (2.5.4)
     drb (2.2.3)
     escape (0.0.4)
     ethon (0.15.0)
       ffi (>= 1.15.0)
+    ffi (1.17.2)
     ffi (1.17.2-arm64-darwin)
     fourflusher (2.3.1)
     fuzzy_match (2.0.4)
@@ -105,13 +106,14 @@ GEM
 PLATFORMS
   arm64-darwin-23
   arm64-darwin-24
+  x86_64-linux
 
 DEPENDENCIES
   activesupport (>= 6.1.7.5, != 7.1.0)
   benchmark
   bigdecimal
   cocoapods (>= 1.13, != 1.15.1, != 1.15.0)
-  concurrent-ruby (< 1.3.4)
+  concurrent-ruby (< 1.3.9)
   logger
   mutex_m
   nkf