diff --git a/bucket/terragrunt.json b/bucket/terragrunt.json
index 52b1a90cae..c578fdf075 100644
--- a/bucket/terragrunt.json
+++ b/bucket/terragrunt.json
@@ -1,16 +1,16 @@
 {
-    "version": "0.66.3",
+    "version": "0.66.4",
     "description": "Thin wrapper for Terraform that provides extra tools for keeping Terraform configurations DRY, working with multiple Terraform modules, and managing remote state.",
     "homepage": "https://github.com/gruntwork-io/terragrunt",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/gruntwork-io/terragrunt/releases/download/v0.66.3/terragrunt_windows_amd64.exe#/terragrunt.exe",
-            "hash": "9545f9c6daa003972a828215eacc7a4ca63ed825db75bc606ec8e90c01301c60"
+            "url": "https://github.com/gruntwork-io/terragrunt/releases/download/v0.66.4/terragrunt_windows_amd64.exe#/terragrunt.exe",
+            "hash": "49b4190edad5673eee732d03c9cba7c43463672af247ed0aa02e581f36236aff"
         },
         "32bit": {
-            "url": "https://github.com/gruntwork-io/terragrunt/releases/download/v0.66.3/terragrunt_windows_386.exe#/terragrunt.exe",
-            "hash": "a80b2aa15324059d17d1cab2daf8ef1ddcd18dc9b8fed97c2a8d523edc506ed7"
+            "url": "https://github.com/gruntwork-io/terragrunt/releases/download/v0.66.4/terragrunt_windows_386.exe#/terragrunt.exe",
+            "hash": "bbd286433391e616e5f7ff296ecded4d80122358756dafb50d052cae5260d232"
         }
     },
     "bin": "terragrunt.exe",