diff --git a/src/Generators/MigrationGenerator.php b/src/Generators/MigrationGenerator.php
index a1a04f82..0910e2fa 100644
--- a/src/Generators/MigrationGenerator.php
+++ b/src/Generators/MigrationGenerator.php
@@ -165,12 +165,7 @@ protected function buildDefinition(Model $model): string
             if ($column->name() === 'id' && $dataType === 'id') {
                 $dataType = 'bigIncrements';
             } elseif ($dataType === 'id') {
-                if ($model->isPivot()) {
-                    // TODO: what if constraints are enabled?
-                    $dataType = 'foreignId';
-                } else {
-                    $dataType = 'unsignedBigInteger';
-                }
+                $dataType = 'foreignId';
             }
 
             if (in_array($dataType, self::UNSIGNABLE_TYPES) && in_array('unsigned', $column->modifiers())) {
diff --git a/src/Lexers/ModelLexer.php b/src/Lexers/ModelLexer.php
index 1569e711..dcf195fb 100644
--- a/src/Lexers/ModelLexer.php
+++ b/src/Lexers/ModelLexer.php
@@ -178,7 +178,7 @@ private function buildModel(string $name, array $columns): Model
                         if ($type === 'belongsTo') {
                             $column = $this->columnNameFromRelationship($relationship);
                             if (isset($columns[$column]) && !str_contains($columns[$column], ' foreign') && !str_contains($columns[$column], ' id')) {
-                                $columns[$column] .= ' id:' . Str::before($relationship, ':');
+                                $columns[$column] = trim($this->removeDataTypes($columns[$column]) . ' id:' . Str::before($relationship, ':'));
                             }
                         }
                     }
@@ -215,7 +215,7 @@ private function buildColumn(string $name, string $definition): Column
         $data_type = null;
         $modifiers = [];
 
-        $tokens = preg_split('#("|\').*?\1(*SKIP)(*FAIL)|\s+#', $definition);
+        $tokens = $this->parseColumn($definition);
         foreach ($tokens as $token) {
             $parts = explode(':', $token);
             $value = $parts[0];
@@ -330,4 +330,19 @@ private function hasBelongsToRelationship(Model $model, string $reference): bool
 
         return false;
     }
+
+    private function removeDataTypes(string $definition): string
+    {
+        $tokens = array_filter(
+            $this->parseColumn($definition),
+            fn ($token) => strtolower($token) !== 'unsigned' && !isset(self::$dataTypes[strtolower($token)])
+        );
+
+        return implode(' ', $tokens);
+    }
+
+    private function parseColumn(string $definition): array
+    {
+        return preg_split('#("|\').*?\1(*SKIP)(*FAIL)|\s+#', $definition);
+    }
 }
diff --git a/tests/Feature/Lexers/ModelLexerTest.php b/tests/Feature/Lexers/ModelLexerTest.php
index 3d64cb84..8f6a67c6 100644
--- a/tests/Feature/Lexers/ModelLexerTest.php
+++ b/tests/Feature/Lexers/ModelLexerTest.php
@@ -681,7 +681,7 @@ public function it_infers_belongsTo_columns(): void
         $this->assertEquals([], $columns['id']->modifiers());
         $this->assertEquals('venue_id', $columns['venue_id']->name());
         $this->assertEquals('id', $columns['venue_id']->dataType());
-        $this->assertEquals(['unsigned'], $columns['venue_id']->modifiers());
+        $this->assertEquals([], $columns['venue_id']->modifiers());
         $this->assertEquals(['Venue'], $columns['venue_id']->attributes());
         $this->assertEquals('region_id', $columns['region_id']->name());
         $this->assertEquals('id', $columns['region_id']->dataType());
diff --git a/tests/fixtures/migrations/belongs-to-many.php b/tests/fixtures/migrations/belongs-to-many.php
index 91b9f287..a6ec5a92 100644
--- a/tests/fixtures/migrations/belongs-to-many.php
+++ b/tests/fixtures/migrations/belongs-to-many.php
@@ -14,7 +14,7 @@ public function up(): void
         Schema::create('journeys', function (Blueprint $table) {
             $table->id();
             $table->string('name');
-            $table->unsignedBigInteger('user_id');
+            $table->foreignId('user_id');
             $table->timestamps();
         });
     }
diff --git a/tests/fixtures/migrations/identity-columns-big-increments.php b/tests/fixtures/migrations/identity-columns-big-increments.php
index 0c0f6c33..dcf8f54e 100644
--- a/tests/fixtures/migrations/identity-columns-big-increments.php
+++ b/tests/fixtures/migrations/identity-columns-big-increments.php
@@ -13,8 +13,8 @@ public function up(): void
     {
         Schema::create('relationships', function (Blueprint $table) {
             $table->bigIncrements('id');
-            $table->unsignedBigInteger('post_id');
-            $table->unsignedBigInteger('another');
+            $table->foreignId('post_id');
+            $table->foreignId('another');
         });
     }
 
diff --git a/tests/fixtures/migrations/identity-columns.php b/tests/fixtures/migrations/identity-columns.php
index 3302c307..1c954920 100644
--- a/tests/fixtures/migrations/identity-columns.php
+++ b/tests/fixtures/migrations/identity-columns.php
@@ -13,8 +13,8 @@ public function up(): void
     {
         Schema::create('relationships', function (Blueprint $table) {
             $table->id();
-            $table->unsignedBigInteger('post_id');
-            $table->unsignedBigInteger('another');
+            $table->foreignId('post_id');
+            $table->foreignId('another');
         });
     }
 
diff --git a/tests/fixtures/migrations/indexes.php b/tests/fixtures/migrations/indexes.php
index 953d93dc..f35fabe1 100644
--- a/tests/fixtures/migrations/indexes.php
+++ b/tests/fixtures/migrations/indexes.php
@@ -14,8 +14,8 @@ public function up(): void
         Schema::create('posts', function (Blueprint $table) {
             $table->unsignedInteger('id');
             $table->string('title');
-            $table->unsignedBigInteger('parent_post_id');
-            $table->unsignedBigInteger('author_id');
+            $table->foreignId('parent_post_id');
+            $table->foreignId('author_id');
             $table->timestamp('published_at')->nullable();
             $table->unsignedInteger('word_count');
             $table->geometry('location');
diff --git a/tests/fixtures/migrations/infer-belongsto.php b/tests/fixtures/migrations/infer-belongsto.php
index 48ef2838..751828df 100644
--- a/tests/fixtures/migrations/infer-belongsto.php
+++ b/tests/fixtures/migrations/infer-belongsto.php
@@ -14,8 +14,8 @@ public function up(): void
         Schema::create('conferences', function (Blueprint $table) {
             $table->id();
             $table->string('name');
-            $table->unsignedBigInteger('venue_id');
-            $table->unsignedBigInteger('region_id');
+            $table->foreignId('venue_id');
+            $table->foreignId('region_id');
             $table->timestamps();
         });
     }
diff --git a/tests/fixtures/migrations/models-with-custom-namespace.php b/tests/fixtures/migrations/models-with-custom-namespace.php
index ec10b74d..25bf9f3c 100644
--- a/tests/fixtures/migrations/models-with-custom-namespace.php
+++ b/tests/fixtures/migrations/models-with-custom-namespace.php
@@ -15,7 +15,7 @@ public function up(): void
             $table->id();
             $table->string('name', 30);
             $table->string('image');
-            $table->unsignedBigInteger('parent_id')->nullable();
+            $table->foreignId('parent_id')->nullable();
             $table->boolean('active')->default(true);
             $table->timestamps();
             $table->softDeletes();
diff --git a/tests/fixtures/migrations/readme-example.php b/tests/fixtures/migrations/readme-example.php
index 92ceba79..424e5699 100644
--- a/tests/fixtures/migrations/readme-example.php
+++ b/tests/fixtures/migrations/readme-example.php
@@ -16,7 +16,7 @@ public function up(): void
             $table->string('title', 400);
             $table->longText('content');
             $table->timestamp('published_at')->nullable();
-            $table->unsignedBigInteger('author_id');
+            $table->foreignId('author_id');
             $table->timestamps();
         });
     }
diff --git a/tests/fixtures/migrations/relationships.php b/tests/fixtures/migrations/relationships.php
index 0079985a..bfc37355 100644
--- a/tests/fixtures/migrations/relationships.php
+++ b/tests/fixtures/migrations/relationships.php
@@ -13,8 +13,8 @@ public function up(): void
     {
         Schema::create('comments', function (Blueprint $table) {
             $table->id();
-            $table->unsignedBigInteger('post_id');
-            $table->unsignedBigInteger('author_id');
+            $table->foreignId('post_id');
+            $table->foreignId('author_id');
             $table->timestamps();
         });
     }
diff --git a/tests/fixtures/migrations/soft-deletes.php b/tests/fixtures/migrations/soft-deletes.php
index c4881824..6ef4ec40 100644
--- a/tests/fixtures/migrations/soft-deletes.php
+++ b/tests/fixtures/migrations/soft-deletes.php
@@ -13,7 +13,7 @@ public function up(): void
     {
         Schema::create('comments', function (Blueprint $table) {
             $table->id();
-            $table->unsignedBigInteger('post_id');
+            $table->foreignId('post_id');
             $table->timestamps();
             $table->softDeletes();
         });
diff --git a/tests/fixtures/migrations/unconventional.php b/tests/fixtures/migrations/unconventional.php
index a9131c87..cf0eea40 100644
--- a/tests/fixtures/migrations/unconventional.php
+++ b/tests/fixtures/migrations/unconventional.php
@@ -14,8 +14,8 @@ public function up(): void
         Schema::create('teams', function (Blueprint $table) {
             $table->id();
             $table->string('name');
-            $table->unsignedBigInteger('owner');
-            $table->unsignedBigInteger('manager');
+            $table->foreignId('owner');
+            $table->foreignId('manager');
             $table->json('options');
             $table->timestamps();
         });