diff --git a/terraform/account/region/cloudwatch.tf b/terraform/account/region/cloudwatch.tf
index 625ace500a..028b14aa83 100644
--- a/terraform/account/region/cloudwatch.tf
+++ b/terraform/account/region/cloudwatch.tf
@@ -10,7 +10,7 @@ resource "aws_cloudwatch_log_group" "use-an-lpa" {
 }
 
 data "aws_kms_alias" "cloudwatch_mrk" {
-  name = "alias/cloudwatch_encryption"
+  name = "alias/cloudwatch-encryption-mrk"
 
   provider = aws.region
 }
diff --git a/terraform/environment/region/data_sources.tf b/terraform/environment/region/data_sources.tf
index c35b917b00..0c9d224d42 100644
--- a/terraform/environment/region/data_sources.tf
+++ b/terraform/environment/region/data_sources.tf
@@ -56,7 +56,7 @@ data "aws_kms_alias" "pagerduty_sns" {
 }
 
 data "aws_kms_alias" "cloudwatch_encryption" {
-  name = "alias/cloudwatch_encryption"
+  name = "alias/cloudwatch-encryption-mrk"
 
   provider = aws.region
 }
diff --git a/terraform/environment/shared_data_sources.tf b/terraform/environment/shared_data_sources.tf
index 628544755f..7e4b04f517 100644
--- a/terraform/environment/shared_data_sources.tf
+++ b/terraform/environment/shared_data_sources.tf
@@ -65,7 +65,7 @@ data "aws_kms_alias" "pagerduty_sns" {
 }
 
 data "aws_kms_alias" "cloudwatch_encryption" {
-  name = "alias/cloudwatch_encryption"
+  name = "alias/cloudwatch-encryption-mrk"
 }
 
 //--------------------