diff --git a/InvenTree/InvenTree/settings.py b/InvenTree/InvenTree/settings.py
index b1256dccee..366fc9c6ee 100644
--- a/InvenTree/InvenTree/settings.py
+++ b/InvenTree/InvenTree/settings.py
@@ -52,6 +52,9 @@ def get_setting(environment_var, backup_val, default_value=None):
 # Determine if we are running in "test" mode e.g. "manage.py test"
 TESTING = 'test' in sys.argv
 
+# New requirement for django 3.2+
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
diff --git a/InvenTree/build/models.py b/InvenTree/build/models.py
index 4ee8de0d73..5a23752071 100644
--- a/InvenTree/build/models.py
+++ b/InvenTree/build/models.py
@@ -807,7 +807,13 @@ class Build(MPTTModel):
 
         allocations = self.allocatedItems(part, output)
 
-        allocated = allocations.aggregate(q=Coalesce(Sum('quantity'), 0))
+        allocated = allocations.aggregate(
+            q=Coalesce(
+                Sum('quantity'),
+                0,
+                output_field=models.DecimalField(),
+            )
+        )
 
         return allocated['q']
 
diff --git a/InvenTree/part/models.py b/InvenTree/part/models.py
index bd02672b3e..be2d31063f 100644
--- a/InvenTree/part/models.py
+++ b/InvenTree/part/models.py
@@ -1189,10 +1189,13 @@ class Part(MPTTModel):
         against both build orders and sales orders.
         """
 
-        return sum([
-            self.build_order_allocation_count(),
-            self.sales_order_allocation_count(),
-        ])
+        return sum(
+            [
+                self.build_order_allocation_count(),
+                self.sales_order_allocation_count(),
+            ],
+            output_field=models.DecimalField()
+        )
 
     def stock_entries(self, include_variants=True, in_stock=None):
         """ Return all stock entries for this Part.
diff --git a/requirements.txt b/requirements.txt
index e942698d50..1392531e29 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ invoke>=1.4.0                   # Invoke build tool
 wheel>=0.34.2                   # Wheel
 Django==3.2                     # Django package
 pillow==8.1.1                   # Image manipulation
-djangorestframework==3.11.2     # DRF framework
+djangorestframework==3.12.4     # DRF framework
 django-dbbackup==3.3.0          # Database backup / restore functionality
 django-cors-headers==3.2.0      # CORS headers extension for DRF
 django-filter==2.4.0            # Extended filtering options
@@ -13,7 +13,7 @@ django-markdownify==0.8.0       # Markdown rendering
 coreapi==2.3.0                  # API documentation
 pygments==2.7.4                 # Syntax highlighting
 tablib==0.13.0                  # Import / export data files
-django-crispy-forms==1.8.1      # Form helpers
+django-crispy-forms==1.11.2     # Form helpers
 django-import-export==2.0.0     # Data import / export for admin interface
 django-cleanup==5.1.0           # Manage deletion of old / unused uploaded files
 flake8==3.8.3                   # PEP checking