diff --git a/go.mod b/go.mod
index 12a58c8831..9aee9e9f64 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module knative.dev/pkg
 
-go 1.25.0
+go 1.26.0
 
 require (
 	github.com/blang/semver/v4 v4.0.0
diff --git a/testing/duck/testbindable.go b/testing/duck/testbindable.go
index 346a45208e..895b003e09 100644
--- a/testing/duck/testbindable.go
+++ b/testing/duck/testbindable.go
@@ -150,7 +150,7 @@ func (tbs *TestBindableStatus) InitializeConditions() {
 // MarkBindingUnavailable marks the TestBindable's Ready condition to False with
 // the provided reason and message.
 func (tbs *TestBindableStatus) MarkBindingUnavailable(reason, message string) {
-	tbCondSet.Manage(tbs).MarkFalse(apis.ConditionReady, reason, message)
+	tbCondSet.Manage(tbs).MarkFalse(apis.ConditionReady, reason, "%s", message)
 	tbs.clearLTT()
 }