diff --git a/Gemfile.lock b/Gemfile.lock
index 3bcb83aed..48558ba17 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ PATH
   specs:
     view_component (3.21.0)
       activesupport (>= 5.2.0, < 8.1)
-      concurrent-ruby (~> 1.0)
+      concurrent-ruby (~> 1.3.4)
       method_source (~> 1.0)
 
 GEM
diff --git a/view_component.gemspec b/view_component.gemspec
index 2c48f2dfd..e732bc97e 100644
--- a/view_component.gemspec
+++ b/view_component.gemspec
@@ -31,7 +31,7 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency "activesupport", [">= 5.2.0", "< 8.1"]
   spec.add_runtime_dependency "method_source", "~> 1.0"
-  spec.add_runtime_dependency "concurrent-ruby", "~> 1.2.4"
+  spec.add_runtime_dependency "concurrent-ruby", "~> 1.3.4" # lock version that supports Rails 6.1
   spec.add_development_dependency "allocation_stats", "~> 0.1.5"
   spec.add_development_dependency "appraisal", "~> 2.4"
   spec.add_development_dependency "benchmark-ips", "~> 2.13.0"