diff --git a/anthos-bm-gcp-terraform/test/go.mod b/anthos-bm-gcp-terraform/test/go.mod
index 7ab10a9c..7528a000 100644
--- a/anthos-bm-gcp-terraform/test/go.mod
+++ b/anthos-bm-gcp-terraform/test/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/anthos-samples/anthos-bm-gcp-terraform
 
 go 1.23.0
 
-toolchain go1.24.4
+toolchain go1.26.5
 
 require (
 	github.com/gruntwork-io/terratest v0.50.0
diff --git a/test/integration/go.mod b/test/integration/go.mod
index e23d7410..d8f424b8 100644
--- a/test/integration/go.mod
+++ b/test/integration/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/anthos-samples/test/integration
 
 go 1.23.0
 
-toolchain go1.24.4
+toolchain go1.26.5
 
 require (
 	github.com/GoogleCloudPlatform/cloud-foundation-toolkit/infra/blueprint-test v0.17.8