diff --git a/Gemfile.lock b/Gemfile.lock
index 7b4399a..d4db5ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     factory_bot_rails (6.2.0)
-      factory_bot (~> 6.3.0)
+      factory_bot (~> 6.4)
       railties (>= 5.0.0)
 
 GEM
@@ -74,7 +74,7 @@ GEM
     cucumber-tag-expressions (4.1.0)
     diff-lcs (1.5.0)
     erubi (1.12.0)
-    factory_bot (6.3.0)
+    factory_bot (6.4.0)
       activesupport (>= 5.0.0)
     ffi (1.15.5)
     ffi (1.15.5-java)
diff --git a/factory_bot_rails.gemspec b/factory_bot_rails.gemspec
index 7ffc6c3..b295d29 100644
--- a/factory_bot_rails.gemspec
+++ b/factory_bot_rails.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.executables = []
   s.license = "MIT"
 
-  s.add_runtime_dependency("factory_bot", "~> 6.3.0")
+  s.add_runtime_dependency("factory_bot", "~> 6.4")
   s.add_runtime_dependency("railties", ">= 5.0.0")
 
   s.add_development_dependency("sqlite3")