diff --git a/.go-version b/.go-version
index d905a6d1d6..61b813d5e6 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.25.1
+1.25.2
diff --git a/internal/prometheus/prometheus_test.go b/internal/prometheus/prometheus_test.go
index 4a8327f979..b224c11931 100644
--- a/internal/prometheus/prometheus_test.go
+++ b/internal/prometheus/prometheus_test.go
@@ -160,7 +160,8 @@ func TestJSONSerialization(t *testing.T) {
 			"go_godebug_non_default_behavior_containermaxprocs_events_total",
 			"go_godebug_non_default_behavior_updatemaxprocs_events_total",
 			"go_godebug_non_default_behavior_x509sha256skid_events_total",
-			"go_godebug_non_default_behavior_tlssha1_events_total", // here and above, added with 1.25.1
+			"go_godebug_non_default_behavior_tlssha1_events_total",          // here and above, added with 1.25.1
+			"go_godebug_non_default_behavior_httpcookiemaxnum_events_total", // go 1.25.2
 		},
 		"SUMMARY": {
 			"go_gc_duration_seconds",