diff --git a/src/models/co-benefits/co-benefits.model.js b/src/models/co-benefits/co-benefits.model.js
index 70b7da30..c0e3d03b 100644
--- a/src/models/co-benefits/co-benefits.model.js
+++ b/src/models/co-benefits/co-benefits.model.js
@@ -5,12 +5,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects';
 
 class CoBenefit extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     CoBenefit.belongsTo(Project);
   }
 }
diff --git a/src/models/index.js b/src/models/index.js
index 5ccef6f4..c128274c 100644
--- a/src/models/index.js
+++ b/src/models/index.js
@@ -1,3 +1,23 @@
+import { Project } from "./projects";
+import { CoBenefit } from "./co-benefits";
+import { ProjectLocation } from "./locations/index.js";
+import { Qualification } from "./qualifications/index.js";
+import { Rating } from "./ratings/index.js";
+import { RelatedProject } from "./related-projects/index.js";
+import { Staging } from "./staging/index.js";
+import { Unit } from "./units/index.js";
+import { Vintage } from "./vintages/index.js";
+
+Project.associate();
+CoBenefit.associate();
+ProjectLocation.associate();
+Qualification.associate();
+Rating.associate();
+RelatedProject.associate();
+Staging.associate();
+Unit.associate();
+Vintage.associate();
+
 export * from './projects';
 export * from './co-benefits';
 export * from './locations';
diff --git a/src/models/locations/locations.model.js b/src/models/locations/locations.model.js
index 06ddd990..91d802b1 100644
--- a/src/models/locations/locations.model.js
+++ b/src/models/locations/locations.model.js
@@ -5,12 +5,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects';
 
 class ProjectLocation extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     ProjectLocation.belongsTo(Project);
   }
 }
diff --git a/src/models/projects/projects.model.js b/src/models/projects/projects.model.js
index 3501502e..6e2a43aa 100644
--- a/src/models/projects/projects.model.js
+++ b/src/models/projects/projects.model.js
@@ -11,12 +11,7 @@ import { Rating } from './../ratings';
 import { CoBenefit } from './../co-benefits';
 
 class Project extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     Project.hasMany(RelatedProject);
     Project.hasMany(Vintage);
     Project.hasMany(Qualification);
diff --git a/src/models/qualifications/qualifications.model.js b/src/models/qualifications/qualifications.model.js
index 9513eb28..494d270f 100644
--- a/src/models/qualifications/qualifications.model.js
+++ b/src/models/qualifications/qualifications.model.js
@@ -6,12 +6,7 @@ import { Project } from '../projects';
 import { Unit } from '../units';
 
 class Qualification extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     Qualification.belongsTo(Project);
     Qualification.hasMany(Unit);
   }
diff --git a/src/models/ratings/ratings.model.js b/src/models/ratings/ratings.model.js
index aa345c99..06e283d4 100644
--- a/src/models/ratings/ratings.model.js
+++ b/src/models/ratings/ratings.model.js
@@ -5,12 +5,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects/index';
 
 class Rating extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     Rating.belongsTo(Project);
   }
 }
diff --git a/src/models/related-projects/related-projects.model.js b/src/models/related-projects/related-projects.model.js
index 3d6c8a8c..45501524 100644
--- a/src/models/related-projects/related-projects.model.js
+++ b/src/models/related-projects/related-projects.model.js
@@ -6,12 +6,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects';
 
 class RelatedProject extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     RelatedProject.belongsTo(Project);
   }
 }
diff --git a/src/models/staging/staging.model.js b/src/models/staging/staging.model.js
index 8e2d10f2..0cdd481e 100644
--- a/src/models/staging/staging.model.js
+++ b/src/models/staging/staging.model.js
@@ -4,12 +4,7 @@ const { Model } = Sequelize;
 import { sequelize } from '../database';
 
 class Staging extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     // define association here
   }
 }
diff --git a/src/models/units/units.model.js b/src/models/units/units.model.js
index b98df6c2..7be70864 100644
--- a/src/models/units/units.model.js
+++ b/src/models/units/units.model.js
@@ -5,12 +5,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects/index';
 
 class Unit extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     Unit.belongsTo(Project);
   }
 }
diff --git a/src/models/vintages/vintages.model.js b/src/models/vintages/vintages.model.js
index 43554262..655daad5 100644
--- a/src/models/vintages/vintages.model.js
+++ b/src/models/vintages/vintages.model.js
@@ -5,12 +5,7 @@ import { sequelize } from '../database';
 import { Project } from '../projects/index';
 
 class Vintage extends Model {
-  /**
-   * Helper method for defining associations.
-   * This method is not a part of Sequelize lifecycle.
-   * The `models/index` file will call this method automatically.
-   */
-  static associate(models) {
+  static associate() {
     Vintage.belongsTo(Project);
   }
 }