diff --git a/integration/scenario.go b/integration/scenario.go
index 83ee4495d5..bd004247dc 100644
--- a/integration/scenario.go
+++ b/integration/scenario.go
@@ -51,10 +51,11 @@ var (
 	tailscaleVersions2021 = map[string]bool{
 		"head":     true,
 		"unstable": true,
-		"1.64":     true,  // CapVer: 82
-		"1.62":     true,  // CapVer: 82
-		"1.60":     true,  // CapVer: 82
-		"1.58":     true,  // CapVer: 82
+		"1.66":     true,  // CapVer: not checked
+		"1.64":     true,  // CapVer: not checked
+		"1.62":     true,  // CapVer: not checked
+		"1.60":     true,  // CapVer: not checked
+		"1.58":     true,  // CapVer: not checked
 		"1.56":     true,  // CapVer: 82
 		"1.54":     true,  // CapVer: 79
 		"1.52":     true,  // CapVer: 79