diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2c7c1e6..6d2eb21 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Unit tests (the contract guard)
         run: dotnet test FindNextCIDRRange.sln -c Release --no-build
 
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@v4
         with:
           terraform_version: "~> 1.9"