diff --git a/acceptance-tests/bbl/ssh_linux_test.go b/acceptance-tests/bbl/ssh_linux_test.go
index 9b763603f..92a1f7b6d 100644
--- a/acceptance-tests/bbl/ssh_linux_test.go
+++ b/acceptance-tests/bbl/ssh_linux_test.go
@@ -12,7 +12,7 @@ import (
 	"github.com/onsi/gomega/gexec"
 )
 
-var _ = Describe("ssh", func() {
+var _ = Describe("ssh", Serial, func() {
 	var (
 		bbl actors.BBL
 
diff --git a/acceptance-tests/bbl/up_and_down_test.go b/acceptance-tests/bbl/up_and_down_test.go
index 8b4a9ce81..1a76eb887 100644
--- a/acceptance-tests/bbl/up_and_down_test.go
+++ b/acceptance-tests/bbl/up_and_down_test.go
@@ -11,7 +11,7 @@ import (
 	"github.com/onsi/gomega/gexec"
 )
 
-var _ = Describe("up_and_down", func() {
+var _ = Describe("up_and_down", Serial, func() {
 	var (
 		bbl     actors.BBL
 		boshcli actors.BOSHCLI