diff --git a/examples/metric/metrics/go.mod b/examples/metric/metrics/go.mod
index 79984f2..ac94310 100644
--- a/examples/metric/metrics/go.mod
+++ b/examples/metric/metrics/go.mod
@@ -2,8 +2,6 @@ module github.com/uptrace/opentelemetry-go-extra/example/prometheus/metrics
 
 go 1.22
 
-toolchain go1.22.5
-
 require (
 	github.com/prometheus/client_golang v1.17.0
 	go.opentelemetry.io/contrib/instrumentation/runtime v0.44.0