diff --git a/pkg/output/tap.go b/pkg/output/tap.go
index 9803f5f..8ef8563 100644
--- a/pkg/output/tap.go
+++ b/pkg/output/tap.go
@@ -32,6 +32,11 @@ func tapOutput(w io.Writer, withSummary bool, isStdin, verbose bool) Output {
 // JSON.Write will only write when JSON.Flush has been called
 func (o *tapo) Write(res validator.Result) error {
 	o.index++
+
+	if o.index == 1 {
+		fmt.Fprintf(o.w, "TAP version 13\n")
+	}
+
 	switch res.Status {
 	case validator.Valid:
 		sig, _ := res.Resource.Signature()
diff --git a/pkg/output/tap_test.go b/pkg/output/tap_test.go
index 1a8b632..3cce4a2 100644
--- a/pkg/output/tap_test.go
+++ b/pkg/output/tap_test.go
@@ -36,7 +36,7 @@ metadata:
 					Err:    nil,
 				},
 			},
-			"ok 1 - deployment.yml (Deployment)\n1..1\n",
+			"TAP version 13\nok 1 - deployment.yml (Deployment)\n1..1\n",
 		},
 		{
 			"a single deployment, verbose, with summary",
@@ -57,7 +57,7 @@ metadata:
 					Err:    nil,
 				},
 			},
-			"ok 1 - deployment.yml (Deployment)\n1..1\n",
+			"TAP version 13\nok 1 - deployment.yml (Deployment)\n1..1\n",
 		},
 	} {
 		w := new(bytes.Buffer)