diff --git a/agent/consul/leader_connect_test.go b/agent/consul/leader_connect_test.go
index ba7122911f..9fd7816014 100644
--- a/agent/consul/leader_connect_test.go
+++ b/agent/consul/leader_connect_test.go
@@ -12,16 +12,17 @@ import (
 	"testing"
 	"time"
 
+	uuid "github.com/hashicorp/go-uuid"
+	msgpackrpc "github.com/hashicorp/net-rpc-msgpackrpc"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
 	"github.com/hashicorp/consul/agent/connect"
 	"github.com/hashicorp/consul/agent/connect/ca"
 	"github.com/hashicorp/consul/agent/structs"
 	"github.com/hashicorp/consul/agent/token"
 	"github.com/hashicorp/consul/sdk/testutil/retry"
 	"github.com/hashicorp/consul/testrpc"
-	uuid "github.com/hashicorp/go-uuid"
-	msgpackrpc "github.com/hashicorp/net-rpc-msgpackrpc"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func TestLeader_SecondaryCA_Initialize(t *testing.T) {
@@ -923,8 +924,7 @@ func TestLeader_CARootPruning(t *testing.T) {
 		t.Skip("too slow for testing.Short")
 	}
 
-	t.Parallel()
-
+	// Can not use t.Parallel(), because this modifies a global.
 	caRootPruneInterval = 200 * time.Millisecond
 
 	require := require.New(t)
diff --git a/agent/consul/stats_fetcher_test.go b/agent/consul/stats_fetcher_test.go
index 5afd928ce5..018f3ccc91 100644
--- a/agent/consul/stats_fetcher_test.go
+++ b/agent/consul/stats_fetcher_test.go
@@ -6,11 +6,12 @@ import (
 	"testing"
 	"time"
 
+	"github.com/hashicorp/raft"
+
 	"github.com/hashicorp/consul/agent/metadata"
 	"github.com/hashicorp/consul/sdk/testutil/retry"
 	"github.com/hashicorp/consul/testrpc"
 	"github.com/hashicorp/consul/types"
-	"github.com/hashicorp/raft"
 )
 
 func TestStatsFetcher(t *testing.T) {
@@ -76,8 +77,14 @@ func TestStatsFetcher(t *testing.T) {
 	// from it.
 	func() {
 		retry.Run(t, func(r *retry.R) {
+			s1.statsFetcher.inflightLock.Lock()
 			s1.statsFetcher.inflight[raft.ServerID(s3.config.NodeID)] = struct{}{}
-			defer delete(s1.statsFetcher.inflight, raft.ServerID(s3.config.NodeID))
+			s1.statsFetcher.inflightLock.Unlock()
+			defer func() {
+				s1.statsFetcher.inflightLock.Lock()
+				delete(s1.statsFetcher.inflight, raft.ServerID(s3.config.NodeID))
+				s1.statsFetcher.inflightLock.Unlock()
+			}()
 
 			ctx, cancel := context.WithTimeout(context.Background(), time.Second)
 			defer cancel()