diff --git a/bazel/dependency_imports.bzl b/bazel/dependency_imports.bzl
index c508c6040226b..009cafb208f92 100644
--- a/bazel/dependency_imports.bzl
+++ b/bazel/dependency_imports.bzl
@@ -25,7 +25,7 @@ load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_regi
 load("@shellcheck//:deps.bzl", "shellcheck_dependencies")
 
 # go version for rules_go
-GO_VERSION = "1.24.6"
+GO_VERSION = "1.26.2"
 
 JQ_VERSION = "1.7"
 YQ_VERSION = "4.24.4"
diff --git a/contrib/golang/router/cluster_specifier/test/test_data/simple/go.mod b/contrib/golang/router/cluster_specifier/test/test_data/simple/go.mod
index 21d45eb369785..9f995b8aab7a9 100644
--- a/contrib/golang/router/cluster_specifier/test/test_data/simple/go.mod
+++ b/contrib/golang/router/cluster_specifier/test/test_data/simple/go.mod
@@ -2,17 +2,19 @@ module example.com/routeconfig
 
 go 1.24.6
 
+toolchain go1.26.2
+
 require (
-	github.com/cncf/xds/go v0.0.0-20251110193048-8bfbf64dc13e
+	github.com/cncf/xds/go v0.0.0-20251210132809-ee656c7534f5
 	github.com/envoyproxy/envoy v1.36.2
 	google.golang.org/protobuf v1.36.11
 )
 
 require (
 	cel.dev/expr v0.25.1 // indirect
-	github.com/envoyproxy/protoc-gen-validate v1.2.1 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20251029180050-ab9386a59fda // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda // indirect
+	github.com/envoyproxy/protoc-gen-validate v1.3.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
 )
 
 replace github.com/envoyproxy/envoy => ../../../../../../../