diff --git a/etc/kapacitor/kapacitor.conf b/etc/kapacitor/kapacitor.conf
index 0f6f1fc04..a074ea2d4 100644
--- a/etc/kapacitor/kapacitor.conf
+++ b/etc/kapacitor/kapacitor.conf
@@ -484,8 +484,7 @@ default-retention-policy = ""
   # Default authentication token.
   token = ""
   # Default token prefix
-  # If you are on older versions of alerta you may need to change this to "Key"
-  token-prefix = "Bearer"
+  token-prefix = "Key"
   # Default environment.
   environment = ""
   # Default origin.
diff --git a/integrations/streamer_test.go b/integrations/streamer_test.go
index 10df5684d..2c528d412 100644
--- a/integrations/streamer_test.go
+++ b/integrations/streamer_test.go
@@ -8864,7 +8864,7 @@ stream
 	exp := []interface{}{
 		alertatest.Request{
 			URL:           "/alert",
-			Authorization: "Bearer testtoken1234567",
+			Authorization: "Key testtoken1234567",
 			PostData: alertatest.PostData{
 				Resource:    "cpu",
 				Event:       "serverA",
@@ -8878,7 +8878,7 @@ stream
 		},
 		alertatest.Request{
 			URL:           "/alert",
-			Authorization: "Bearer anothertesttoken",
+			Authorization: "Key anothertesttoken",
 			PostData: alertatest.PostData{
 				Resource:    "resource: serverA",
 				Event:       "event: TestStream_Alert",
diff --git a/server/server_test.go b/server/server_test.go
index 712150ab2..6c5f62d33 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -9474,7 +9474,7 @@ func TestServer_AlertHandlers(t *testing.T) {
 				Kind: "alerta",
 				Options: map[string]interface{}{
 					"token":        "testtoken1234567",
-					"token-prefix": "Bearer",
+					"token-prefix": "Key",
 					"origin":       "kapacitor",
 					"group":        "test",
 					"environment":  "env",
@@ -9495,7 +9495,7 @@ func TestServer_AlertHandlers(t *testing.T) {
 				got := ts.Requests()
 				exp := []alertatest.Request{{
 					URL:           "/alert",
-					Authorization: "Bearer testtoken1234567",
+					Authorization: "Key testtoken1234567",
 					PostData: alertatest.PostData{
 						Resource:    "alert",
 						Event:       "id",
diff --git a/services/alerta/config.go b/services/alerta/config.go
index 839afb855..98c3d6871 100644
--- a/services/alerta/config.go
+++ b/services/alerta/config.go
@@ -17,7 +17,7 @@ type Config struct {
 	// The authentication token for this notification, can be overridden per alert.
 	Token string `toml:"token" override:"token,redact"`
 	// The prefix for the Authentication field where the token is stored
-	// This defaults to Bearer but you may need to set this to "Key" for older versions of alerta
+	// This defaults to Key
 	TokenPrefix string `toml:"token-prefix" override:"token-prefix"`
 	// The environment in which to raise the alert.
 	Environment string `toml:"environment" override:"environment"`
diff --git a/services/alerta/service.go b/services/alerta/service.go
index cea6d1c1c..e8baacebb 100644
--- a/services/alerta/service.go
+++ b/services/alerta/service.go
@@ -24,7 +24,7 @@ const (
 	defaultEvent       = "{{ .ID }}"
 	defaultGroup       = "{{ .Group }}"
 	defaultTimeout     = time.Duration(24 * time.Hour)
-	defaultTokenPrefix = "Bearer"
+	defaultTokenPrefix = "Key"
 )
 
 type Diagnostic interface {