diff --git a/internal/services/monitor/monitor_diagnostic_setting_resource.go b/internal/services/monitor/monitor_diagnostic_setting_resource.go
index b7c05c3a67fe..a9f2eb7b65f3 100644
--- a/internal/services/monitor/monitor_diagnostic_setting_resource.go
+++ b/internal/services/monitor/monitor_diagnostic_setting_resource.go
@@ -336,7 +336,7 @@ func resourceMonitorDiagnosticSettingRead(d *pluginsdk.ResourceData, meta interf
 
 			workspaceId := ""
 			if props.WorkspaceId != nil && *props.WorkspaceId != "" {
-				parsedId, err := workspaces.ParseWorkspaceID(*props.WorkspaceId)
+				parsedId, err := workspaces.ParseWorkspaceIDInsensitively(*props.WorkspaceId)
 				if err != nil {
 					return err
 				}
diff --git a/internal/services/securitycenter/security_center_workspace_resource.go b/internal/services/securitycenter/security_center_workspace_resource.go
index 9194a7569901..f61c9cd77aaf 100644
--- a/internal/services/securitycenter/security_center_workspace_resource.go
+++ b/internal/services/securitycenter/security_center_workspace_resource.go
@@ -159,7 +159,7 @@ func resourceSecurityCenterWorkspaceRead(d *pluginsdk.ResourceData, meta interfa
 		d.Set("scope", properties.Scope)
 		workspaceId := ""
 		if properties.WorkspaceID != nil {
-			id, err := workspaces.ParseWorkspaceID(*properties.WorkspaceID)
+			id, err := workspaces.ParseWorkspaceIDInsensitively(*properties.WorkspaceID)
 			if err != nil {
 				return fmt.Errorf("Reading Security Center Log Analytics Workspace ID: %+v", err)
 			}