diff --git a/.github/workflows/docker_build.yml b/.github/workflows/docker_build.yml
index ae53306..4dec2a8 100644
--- a/.github/workflows/docker_build.yml
+++ b/.github/workflows/docker_build.yml
@@ -18,21 +18,21 @@ jobs:
           - 0.27.2
         TF_TG:
           # Terraform 1.7.x
-          - 'TF-1.7.5    TG-0.55.20'
+          - 'TF-1.7.5    TG-0.56.5'
           # Terraform 1.6.x
-          - 'TF-1.6.6    TG-0.55.20'
+          - 'TF-1.6.6    TG-0.56.5'
           # Terraform 1.5.x
-          - 'TF-1.5.7    TG-0.55.20'
+          - 'TF-1.5.7    TG-0.56.5'
           # Terraform 1.4.x
-          - 'TF-1.4.7    TG-0.55.20'
+          - 'TF-1.4.7    TG-0.56.5'
           # Terraform 1.3.x
-          - 'TF-1.3.10   TG-0.55.20'
+          - 'TF-1.3.10   TG-0.56.5'
           # Terraform 1.2.x
-          - 'TF-1.2.9    TG-0.55.20'
+          - 'TF-1.2.9    TG-0.56.5'
           # Terraform 1.1.x
-          - 'TF-1.1.9    TG-0.55.20'
+          - 'TF-1.1.9    TG-0.56.5'
           # Terraform 1.0.x
-          - 'TF-1.0.11   TG-0.55.20'
+          - 'TF-1.0.11   TG-0.56.5'
 
     steps:
       - name: Checkout repository
diff --git a/Makefile b/Makefile
index 1b76fc7..2ba11bb 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ TAG = latest
 # Versions
 ATLANTIS = '0.27.2'
 TERRAFORM = '1.7.5'
-TERRAGRUNT = '0.55.20'
+TERRAGRUNT = '0.56.3'
 TERRAGRUNT_ATLANTIS_CONFIG = '1.17.4'
 SOPS = '3.8.1'
 ONE_PASSWORD_CLI = '2.26.1'
diff --git a/README.md b/README.md
index f79218b..7d2249c 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,9 @@ e.g.
 ```
 make build
 make build TERRAFORM=1.7.5
-make build TERRAFORM=1.7.5 TERRAGRUNT=0.55.20
-make build TERRAFORM=1.7.5 TERRAGRUNT=0.55.20 ATLANTIS=0.27.2
-make build TERRAFORM=1.7.5 TERRAGRUNT=0.55.20 ATLANTIS=0.27.2 SOPS=3.8.1
+make build TERRAFORM=1.7.5 TERRAGRUNT=0.56.5
+make build TERRAFORM=1.7.5 TERRAGRUNT=0.56.5 ATLANTIS=0.27.2
+make build TERRAFORM=1.7.5 TERRAGRUNT=0.56.5 ATLANTIS=0.27.2 SOPS=3.8.1
 ```
 
 ## Available images