diff --git a/models/forgejo_migrations/migrate.go b/models/forgejo_migrations/migrate.go
index fc5a460163..85229994b4 100644
--- a/models/forgejo_migrations/migrate.go
+++ b/models/forgejo_migrations/migrate.go
@@ -68,6 +68,10 @@ var migrations = []*Migration{
 	NewMigration("Remove Gitea-specific columns from the repository and badge tables", RemoveGiteaSpecificColumnsFromRepositoryAndBadge),
 	// v15 -> v16
 	NewMigration("Create the `federation_host` table", CreateFederationHostTable),
+	// v16 -> v17
+	NewMigration("Create the `federated_user` table", CreateFederatedUserTable),
+	// v17 -> v18
+	NewMigration("Add `normalized_federated_uri` column to `user` table", AddNormalizedFederatedURIToUser),
 }
 
 // GetCurrentDBVersion returns the current Forgejo database version.
diff --git a/models/forgejo_migrations/v16.go b/models/forgejo_migrations/v16.go
new file mode 100644
index 0000000000..f80bfc5268
--- /dev/null
+++ b/models/forgejo_migrations/v16.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+type FederatedUser struct {
+	ID               int64  `xorm:"pk autoincr"`
+	UserID           int64  `xorm:"NOT NULL"`
+	ExternalID       string `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+	FederationHostID int64  `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+}
+
+func CreateFederatedUserTable(x *xorm.Engine) error {
+	return x.Sync(new(FederatedUser))
+}
diff --git a/models/forgejo_migrations/v17.go b/models/forgejo_migrations/v17.go
new file mode 100644
index 0000000000..d6e2983d00
--- /dev/null
+++ b/models/forgejo_migrations/v17.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddNormalizedFederatedURIToUser(x *xorm.Engine) error {
+	type User struct {
+		ID                     int64 `xorm:"pk autoincr"`
+		NormalizedFederatedURI string
+	}
+	return x.Sync(&User{})
+}