diff --git a/tests/fixtures/auth_fixtures.py b/tests/fixtures/auth_fixtures.py
index 1d2f462e..e7be17b5 100644
--- a/tests/fixtures/auth_fixtures.py
+++ b/tests/fixtures/auth_fixtures.py
@@ -28,6 +28,9 @@ def test_user(db, auth_manager):
     db.add(user)
     db.commit()
     db.refresh(user)
+    # Expunge user from session to prevent ResourceWarning about unclosed connections
+    # This detaches the object from the session so it doesn't hold a reference
+    db.expunge(user)
     return user
 
 
@@ -46,6 +49,8 @@ def test_admin(db, auth_manager):
     db.add(admin)
     db.commit()
     db.refresh(admin)
+    # Expunge admin from session to prevent ResourceWarning about unclosed connections
+    db.expunge(admin)
     return admin
 
 @pytest.fixture
@@ -63,6 +68,8 @@ def another_admin(db, auth_manager):
     db.add(admin)
     db.commit()
     db.refresh(admin)
+    # Expunge admin from session to prevent ResourceWarning about unclosed connections
+    db.expunge(admin)
     return admin
 
 @pytest.fixture
@@ -80,6 +87,8 @@ def other_user(db, auth_manager):
     db.add(user)
     db.commit()
     db.refresh(user)
+    # Expunge user from session to prevent ResourceWarning about unclosed connections
+    db.expunge(user)
     return user
 
 
diff --git a/tests/fixtures/customer_fixtures.py b/tests/fixtures/customer_fixtures.py
index b3c25522..b9235a88 100644
--- a/tests/fixtures/customer_fixtures.py
+++ b/tests/fixtures/customer_fixtures.py
@@ -18,6 +18,8 @@ def test_customer(db, test_vendor):
     db.add(customer)
     db.commit()
     db.refresh(customer)
+    # Expunge customer from session to prevent ResourceWarning about unclosed connections
+    db.expunge(customer)
     return customer
 
 
@@ -39,4 +41,6 @@ def test_customer_address(db, test_vendor, test_customer):
     db.add(address)
     db.commit()
     db.refresh(address)
+    # Expunge address from session to prevent ResourceWarning about unclosed connections
+    db.expunge(address)
     return address
diff --git a/tests/fixtures/marketplace_import_job_fixtures.py b/tests/fixtures/marketplace_import_job_fixtures.py
index a4b1fd38..d61e2441 100644
--- a/tests/fixtures/marketplace_import_job_fixtures.py
+++ b/tests/fixtures/marketplace_import_job_fixtures.py
@@ -22,6 +22,8 @@ def test_marketplace_import_job(db, test_vendor, test_user):
     db.add(job)
     db.commit()
     db.refresh(job)
+    # Expunge job from session to prevent ResourceWarning about unclosed connections
+    db.expunge(job)
     return job
 
 
@@ -46,4 +48,6 @@ def create_test_marketplace_import_job(db, vendor_id, user_id, **kwargs):
     db.add(job)
     db.commit()
     db.refresh(job)
+    # Expunge job from session to prevent ResourceWarning about unclosed connections
+    db.expunge(job)
     return job
diff --git a/tests/fixtures/marketplace_product_fixtures.py b/tests/fixtures/marketplace_product_fixtures.py
index 5d564823..cb2b148d 100644
--- a/tests/fixtures/marketplace_product_fixtures.py
+++ b/tests/fixtures/marketplace_product_fixtures.py
@@ -24,6 +24,8 @@ def test_marketplace_product(db):
     db.add(marketplace_product)
     db.commit()
     db.refresh(marketplace_product)
+    # Expunge marketplace_product from session to prevent ResourceWarning about unclosed connections
+    db.expunge(marketplace_product)
     return marketplace_product
 
 
@@ -47,6 +49,8 @@ def unique_product(db):
     db.add(marketplace_product)
     db.commit()
     db.refresh(marketplace_product)
+    # Expunge marketplace_product from session to prevent ResourceWarning about unclosed connections
+    db.expunge(marketplace_product)
     return marketplace_product
 
 
@@ -75,6 +79,8 @@ def multiple_products(db):
     db.commit()
     for product in marketplace_products:
         db.refresh(product)
+        # Expunge each product from session to prevent ResourceWarning about unclosed connections
+        db.expunge(product)
     return marketplace_products
 
 
@@ -97,6 +103,8 @@ def create_unique_marketplace_product_factory():
         db.add(marketplace_product)
         db.commit()
         db.refresh(marketplace_product)
+        # Expunge marketplace_product from session to prevent ResourceWarning about unclosed connections
+        db.expunge(marketplace_product)
         return marketplace_product
 
     return _marketplace_create_product
diff --git a/tests/fixtures/vendor_fixtures.py b/tests/fixtures/vendor_fixtures.py
index 84c57895..e16049e1 100644
--- a/tests/fixtures/vendor_fixtures.py
+++ b/tests/fixtures/vendor_fixtures.py
@@ -22,6 +22,8 @@ def test_vendor(db, test_user):
     db.add(vendor)
     db.commit()
     db.refresh(vendor)
+    # Expunge vendor from session to prevent ResourceWarning about unclosed connections
+    db.expunge(vendor)
     return vendor
 
 
@@ -41,6 +43,8 @@ def unique_vendor(db, test_user):
     db.add(vendor)
     db.commit()
     db.refresh(vendor)
+    # Expunge vendor from session to prevent ResourceWarning about unclosed connections
+    db.expunge(vendor)
     return vendor
 
 
@@ -59,6 +63,8 @@ def inactive_vendor(db, other_user):
     db.add(vendor)
     db.commit()
     db.refresh(vendor)
+    # Expunge vendor from session to prevent ResourceWarning about unclosed connections
+    db.expunge(vendor)
     return vendor
 
 
@@ -77,6 +83,8 @@ def verified_vendor(db, other_user):
     db.add(vendor)
     db.commit()
     db.refresh(vendor)
+    # Expunge vendor from session to prevent ResourceWarning about unclosed connections
+    db.expunge(vendor)
     return vendor
 
 
@@ -94,6 +102,8 @@ def test_product(db, test_vendor, unique_product):
     db.add(product)
     db.commit()
     db.refresh(product)
+    # Expunge product from session to prevent ResourceWarning about unclosed connections
+    db.expunge(product)
     return product
 
 
@@ -112,6 +122,8 @@ def test_inventory(db, test_product):
     db.add(inventory)
     db.commit()
     db.refresh(inventory)
+    # Expunge inventory from session to prevent ResourceWarning about unclosed connections
+    db.expunge(inventory)
     return inventory
 
 
@@ -133,6 +145,8 @@ def multiple_inventory_entries(db, multiple_products, test_vendor):
     db.commit()
     for inventory in inventory_entries:
         db.refresh(inventory)
+        # Expunge each inventory from session to prevent ResourceWarning about unclosed connections
+        db.expunge(inventory)
     return inventory_entries