diff --git a/.github/workflows/django_ci.yaml b/.github/workflows/django_ci.yaml
index 67e8bad7..ab45153b 100644
--- a/.github/workflows/django_ci.yaml
+++ b/.github/workflows/django_ci.yaml
@@ -30,11 +30,9 @@ jobs:
         with:
           cloud-token: ${{ secrets.ATLAS_CLOUD_TOKEN }}
       - name: Set up Atlas action
-        uses: ariga/atlas-action/setup@master
+        uses: ariga/atlas-action/setup@d1655a01682319057d894ec872d6ca4b82cd4eba
       - name: Atlas Schema Lint
-        uses: ariga/atlas-action/schema/lint@master
+        uses: ariga/atlas-action/schema/lint@d1655a01682319057d894ec872d6ca4b82cd4eba
         with:
           working-directory: ./projects/django
-          env: django
-          dev-url: 'sqlite://?mode=memory&_fk=1'
-          url: 'env://url'
\ No newline at end of file
+          env: django
\ No newline at end of file
diff --git a/projects/django/academie/models.py b/projects/django/academie/models.py
index bd857093..86863b60 100644
--- a/projects/django/academie/models.py
+++ b/projects/django/academie/models.py
@@ -1,7 +1,7 @@
 from django.db import models
 
 class University(models.Model):
-    name = models.CharField(max_length=200, unique=True)
+    name = models.CharField(max_length=200)
     location = models.CharField(max_length=100)
     established_date = models.DateField()
 
@@ -11,7 +11,7 @@ def __str__(self):
 class Department(models.Model):
     name = models.CharField(max_length=100, unique=True)
     head_of_department = models.CharField(max_length=100, blank=True, null=True)
-    university = models.ForeignKey(University, on_delete=models.CASCADE, related_name='departments')
+    university = models.ForeignKey(University, on_delete=models.CASCADE, null=True, related_name='departments')
     # A Department belongs to one University
 
     def __str__(self):
@@ -24,7 +24,7 @@ class Student(models.Model):
     date_of_birth = models.DateField()
     email = models.EmailField(unique=True)
     enrollment_date = models.DateField(auto_now_add=True) # Automatically sets the date when student is created
-    department = models.ForeignKey(Department, on_delete=models.SET_NULL, null=True, blank=True, related_name='students')
+    department = models.ForeignKey(Department, on_delete=models.SET_NULL, null=True, blank=True, related_name='students', db_column="department_link")
     # A Student belongs to one Department (optional)
     # If a Department is deleted, student's department field is set to NULL
 
diff --git a/projects/django/atlas.hcl b/projects/django/atlas.hcl
index 980ef141..fbbbb33e 100644
--- a/projects/django/atlas.hcl
+++ b/projects/django/atlas.hcl
@@ -13,7 +13,11 @@ env "django" {
 }
 
 lint {
-  rule "hcl" "name" {
-    src = [ "atlas.rule.hcl" ]
+  rule "hcl" "error" {
+    error = true
+    src = [ "error.rule.hcl" ]
+  }
+  rule "hcl" "warning" {
+    src = [ "warning.rule.hcl" ]
   }
 }
\ No newline at end of file
diff --git a/projects/django/atlas.rule.hcl b/projects/django/error.rule.hcl
similarity index 71%
rename from projects/django/atlas.rule.hcl
rename to projects/django/error.rule.hcl
index 5e457fce..ae9d4cc9 100644
--- a/projects/django/atlas.rule.hcl
+++ b/projects/django/error.rule.hcl
@@ -92,36 +92,4 @@ rule "schema" "foreign-key-not-nullable" {
       }
     }
   }
-}
-
-predicate "column" "postfix_id" {
-  name {
-    match = ".+_id$"
-  }
-}
-
-predicate "foreign_key" "postfix_id" {
-  all {
-    column {
-      predicate = predicate.column.postfix_id
-    }
-  }
-}
-
-rule "schema" "foreign-key-postfix-id" {
-  description = "Foreign keys must have a column name ending with '_id'"
-  table {
-    match {
-      predicate = predicate.table.in
-      vars = {
-        names = ["academie_department", "academie_student"]
-      }
-    }
-    foreign_key {
-      assert {
-        predicate = predicate.foreign_key.postfix_id
-        message   = "Foreign key ${self.name} must have a column name ending with '_id'"
-      }
-    }
-  }
 }
\ No newline at end of file
diff --git a/projects/django/warning.rule.hcl b/projects/django/warning.rule.hcl
new file mode 100644
index 00000000..d6a8471c
--- /dev/null
+++ b/projects/django/warning.rule.hcl
@@ -0,0 +1,40 @@
+predicate "table" "in" {
+  variable "names" {
+    type = list(string)
+  }
+  name {
+    in = var.names
+  }
+}
+
+predicate "column" "postfix_id" {
+  name {
+    match = ".+_id$"
+  }
+}
+
+predicate "foreign_key" "postfix_id" {
+  all {
+    column {
+      predicate = predicate.column.postfix_id
+    }
+  }
+}
+
+rule "schema" "foreign-key-postfix-id" {
+  description = "Foreign keys should have a column name ending with '_id'"
+  table {
+    match {
+      predicate = predicate.table.in
+      vars = {
+        names = ["academie_department", "academie_student"]
+      }
+    }
+    foreign_key {
+      assert {
+        predicate = predicate.foreign_key.postfix_id
+        message   = "Foreign key ${self.name} should have a column name ending with '_id'"
+      }
+    }
+  }
+}
\ No newline at end of file