diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index a2e37aa..decef43 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -44,7 +44,7 @@ jobs:
         if: matrix.tool == 'terraform'
         uses: hashicorp/setup-terraform@v4
         with:
-          terraform_version: 1.15.0 # datasource=github-releases depName=hashicorp/terraform
+          terraform_version: 1.15.5 # datasource=github-releases depName=hashicorp/terraform
           terraform_wrapper: false
 
       - name: Set up OpenTofu
diff --git a/.terraform-version b/.terraform-version
index 141f2e8..d324349 100644
--- a/.terraform-version
+++ b/.terraform-version
@@ -1 +1 @@
-1.15.0
+1.15.5
diff --git a/.trunk/trunk.yaml b/.trunk/trunk.yaml
index a466f13..47e3e07 100644
--- a/.trunk/trunk.yaml
+++ b/.trunk/trunk.yaml
@@ -14,7 +14,7 @@ lint:
     - shellcheck@0.11.0
     - shfmt@3.6.0
     - taplo@0.10.0
-    - terraform@1.15.0 # datasource=github-releases depName=hashicorp/terraform
+    - terraform@1.15.5 # datasource=github-releases depName=hashicorp/terraform
     - tflint@0.62.1
     - tfsec@1.28.14
     - trufflehog@3.95.3