diff --git a/integration-tests/__tests__/alter-processor.spec.js b/integration-tests/__tests__/alter-processor.spec.js
index 4fd2b2bf8..ffc1d0e7b 100644
--- a/integration-tests/__tests__/alter-processor.spec.js
+++ b/integration-tests/__tests__/alter-processor.spec.js
@@ -62,6 +62,7 @@ const TESTED_COLUMNS = ['col_pk', 'col_std', 'col_def', 'col_fk', 'col_ref', 'co
 // const TESTED_COLUMNS = ['col_idx'];
 // const TESTED_COLUMNS = ['col_def'];
 // const TESTED_COLUMNS = ['col_std'];
+// const TESTED_COLUMNS = ['col_ref'];
 
 function engines_columns_source() {
   return _.flatten(engines.map(engine => TESTED_COLUMNS.map(column => [engine.label, column, engine])));
diff --git a/packages/tools/src/alterPlan.ts b/packages/tools/src/alterPlan.ts
index c409344df..b3f05de93 100644
--- a/packages/tools/src/alterPlan.ts
+++ b/packages/tools/src/alterPlan.ts
@@ -222,6 +222,30 @@ export class AlterPlan {
         ];
         return res;
       }
+
+      if (op.operationType == 'changeColumn') {
+        const constraints = this._getDependendColumnConstraints(op.oldObject, this.dialect.changeColumnDependencies);
+
+        const res: AlterOperation[] = [
+          ...constraints.map(oldObject => {
+            const opRes: AlterOperation = {
+              operationType: 'dropConstraint',
+              oldObject,
+            };
+            return opRes;
+          }),
+          op,
+          ..._.reverse([...constraints]).map(newObject => {
+            const opRes: AlterOperation = {
+              operationType: 'createConstraint',
+              newObject,
+            };
+            return opRes;
+          }),
+        ];
+        return res;
+      }
+
       return [op];
     });
 
diff --git a/plugins/dbgate-plugin-mssql/src/frontend/driver.js b/plugins/dbgate-plugin-mssql/src/frontend/driver.js
index 608228abb..7626e4ec5 100644
--- a/plugins/dbgate-plugin-mssql/src/frontend/driver.js
+++ b/plugins/dbgate-plugin-mssql/src/frontend/driver.js
@@ -13,7 +13,7 @@ const dialect = {
   explicitDropConstraint: false,
   enableConstraintsPerTable: true,
   dropColumnDependencies: ['default', 'dependencies', 'indexes', 'primaryKey', 'foreignKeys', 'uniques'],
-  changeColumnDependencies: ['indexes'],
+  changeColumnDependencies: ['indexes', 'dependencies', 'uniques'],
   anonymousPrimaryKey: false,
   dropIndexContainsTableSpec: true,
   quoteIdentifier(s) {