diff --git a/.github/workflows/deploy-cdktf-stacks.yml b/.github/workflows/deploy-cdktf-stacks.yml
index b9f9705..1d817f0 100644
--- a/.github/workflows/deploy-cdktf-stacks.yml
+++ b/.github/workflows/deploy-cdktf-stacks.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@651471c36a6092792c552e8b1bef71e592b462d8
         with:
-          terraform_version: 1.8.5
+          terraform_version: 1.9.0
           cli_config_credentials_token: ${{ secrets.TF_CLOUD_TOKEN }}
           terraform_wrapper: false
 
diff --git a/.github/workflows/diff-cdktf-stacks.yml b/.github/workflows/diff-cdktf-stacks.yml
index 8c9c353..1148a73 100644
--- a/.github/workflows/diff-cdktf-stacks.yml
+++ b/.github/workflows/diff-cdktf-stacks.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@651471c36a6092792c552e8b1bef71e592b462d8
         with:
-          terraform_version: 1.8.5
+          terraform_version: 1.9.0
           cli_config_credentials_token: ${{ secrets.TF_CLOUD_TOKEN }}
           terraform_wrapper: false