diff --git a/dbzero/dbzero/memo.py b/dbzero/dbzero/memo.py
index d1b1e09d..7f887e0e 100644
--- a/dbzero/dbzero/memo.py
+++ b/dbzero/dbzero/memo.py
@@ -180,11 +180,26 @@ def dis_assig(method):
             # value assignment
             if next_inst.opname == "STORE_ATTR":
                 # "self" argument put on the stack
-                if last_inst is not None and last_inst.opname == "LOAD_FAST" and last_inst.arg == 0:
+                if last_inst and _is_self_load_instruction(last_inst):
                     if next_inst.argval not in unique_args:
                         unique_args.add(next_inst.argval)
                         yield next_inst.argval
-            last_inst = next_inst   
+            last_inst = next_inst
+    
+    def _is_self_load_instruction(inst):
+        """Check if an instruction loads 'self' onto the stack."""
+        if inst.opname == "LOAD_FAST" and inst.arg == 0:
+            # Traditional single load of first argument (self)
+            return True
+        elif inst.opname == "LOAD_FAST_BORROW" and inst.arg == 0:
+            # Python 3.14+ borrowed reference load of first argument (self)
+            return True
+        elif inst.opname == "LOAD_FAST_BORROW_LOAD_FAST_BORROW":
+            # Python 3.14+ dual borrowed reference load
+            # argval is a tuple, check if 'self' is the second element (target for STORE_ATTR)
+            if isinstance(inst.argval, tuple) and len(inst.argval) == 2:
+                return inst.argval[1] == 'self'
+        return False   
     
     def dis_init_assig(from_type):
         """
diff --git a/python_tests/test_fast_query.py b/python_tests/test_fast_query.py
index 406ff788..46143261 100644
--- a/python_tests/test_fast_query.py
+++ b/python_tests/test_fast_query.py
@@ -182,16 +182,18 @@ def test_group_by_with_multiple_ops_and_constant(db0_fixture, memo_enum_tags):
     for k in groups.keys():
         assert len(k) == 3
 
+
 def create_process(num_objects: List, px_name):
-        db0.init(DB0_DIR)
-        db0.open(px_name.name, "rw")
-        for count in num_objects:
-            for _ in range(count):
-                obj = MemoTestClass(0)
-                db0.tags(obj).add("tag1")
-            db0.commit()
-            time.sleep(0.05)
-        db0.close()
+    db0.init(DB0_DIR)
+    db0.open(px_name.name, "rw")
+    for count in num_objects:
+        for _ in range(count):
+            obj = MemoTestClass(0)
+            db0.tags(obj).add("tag1")
+        db0.commit()
+        time.sleep(0.05)
+    db0.close()
+    
 
 def test_refreshing_group_by_results(db0_fixture, memo_enum_tags):
     """
@@ -212,10 +214,11 @@ def test_refreshing_group_by_results(db0_fixture, memo_enum_tags):
         db0.open(px_name.name, "r")
         
         result = {0:0}
-        while result[0] < sum(num_objects):
-            if db0.refresh():
-                result = db0.group_by(lambda x: x.value, db0.find(MemoTestClass, "tag1"))                
+        while result and result[0] < sum(num_objects):
+            # NOTE: we might call db0.refresh() but it's also performed automatically            
+            result = db0.group_by(lambda x: x.value, db0.find(MemoTestClass, "tag1"))
             time.sleep(0.05)
+
     finally:
         p.terminate()
         p.join()
diff --git a/requirements.txt b/requirements.txt
index 69621f6f..94f96165 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
-pytest==7.2.1
-pytest-asyncio==0.23.8
+pytest==9.0.1
+pytest-asyncio==1.3.0
 build==0.10.0
 meson-python==0.13.2
 fasteners==0.19
diff --git a/src/dbzero/workspace/FixtureThreads.cpp b/src/dbzero/workspace/FixtureThreads.cpp
index b552c78c..21971969 100644
--- a/src/dbzero/workspace/FixtureThreads.cpp
+++ b/src/dbzero/workspace/FixtureThreads.cpp
@@ -137,7 +137,7 @@ namespace db0
         std::uint64_t uuid = fixture.getUUID();
         auto last_updated = prefix_ptr->getLastUpdated();
         auto now = ClockType::now();
-
+        
         auto it = m_fixture_status.find(uuid);
         assert(it != m_fixture_status.end());        
         FixtureUpdateStatus &update_status = it->second;
@@ -145,11 +145,8 @@ namespace db0
             tryRefresh(fixture);
             update_status.last_updated = last_updated;
             update_status.last_updated_check_tp = now;
-        }
-        else
-        {
-            if((now - update_status.last_updated_check_tp) > std::chrono::seconds(5))
-            {
+        } else {
+            if ((now - update_status.last_updated_check_tp) > std::chrono::seconds(5)) {
                 // This is to protect against edge-case hang on 'wait' function,
                 // caused by refresh thread not picking up all cases when prefix file is modified.
                 // The refresh mechanism can potentially be improved in the future.