diff --git a/.github/workflows/integration.yaml b/.github/workflows/integration.yaml
index cbd210c14a..5adf7f41ac 100644
--- a/.github/workflows/integration.yaml
+++ b/.github/workflows/integration.yaml
@@ -94,7 +94,7 @@ jobs:
 
   python-compatibility-tests:
     runs-on: ubuntu-latest
-    needs: [ redis_version, tests ]
+    needs: [ redis_version ]
     timeout-minutes: 60
     strategy:
       max-parallel: 15
@@ -118,7 +118,7 @@ jobs:
 
   hiredis-tests:
     runs-on: ubuntu-latest
-    needs: [redis_version, tests]
+    needs: [redis_version]
     timeout-minutes: 60
     strategy:
       max-parallel: 15
@@ -144,7 +144,7 @@ jobs:
 
   uvloop-tests:
     runs-on: ubuntu-latest
-    needs: [redis_version, tests]
+    needs: [redis_version]
     timeout-minutes: 60
     strategy:
       max-parallel: 15
@@ -170,7 +170,7 @@ jobs:
   build-and-test-package:
     name: Validate building and installing the package
     runs-on: ubuntu-latest
-    needs: [tests]
+    needs: [redis_version]
     strategy:
       fail-fast: false
       matrix:
diff --git a/dev_requirements.txt b/dev_requirements.txt
index e61f37f101..e0093c0bf1 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,17 +1,30 @@
 build
+build==1.2.2.post1 ; platform_python_implementation == "PyPy"
 click==8.0.4
 invoke==2.2.0
 mock
+mock==5.1.0 ; platform_python_implementation == "PyPy"
 packaging>=20.4
+packaging==24.2 ; platform_python_implementation == "PyPy"
+
 pytest
+pytest==8.3.4 ; platform_python_implementation == "PyPy"
 pytest-asyncio>=0.23.0
+pytest-asyncio==1.1.0 ; platform_python_implementation == "PyPy"
 pytest-cov
+pytest-cov==6.0.0 ; platform_python_implementation == "PyPy"
+coverage==7.6.12 ; platform_python_implementation == "PyPy"
 pytest-profiling==1.8.1
 pytest-timeout
+pytest-timeout==2.3.1 ; platform_python_implementation == "PyPy"
+
 ruff==0.9.6
 ujson>=4.2.0
-uvloop
+uvloop<=0.21.0; platform_python_implementation == "CPython"
 vulture>=2.3.0
-numpy>=1.24.0
+
+numpy>=1.24.0 ; platform_python_implementation == "CPython"
+numpy>=1.24.0,<2.0 ; platform_python_implementation == "PyPy"
+
 redis-entraid==1.0.0
 pybreaker>=1.4.0
diff --git a/tests/test_multidb/test_client.py b/tests/test_multidb/test_client.py
index cbc81b15ed..f39fc286db 100644
--- a/tests/test_multidb/test_client.py
+++ b/tests/test_multidb/test_client.py
@@ -1,4 +1,5 @@
 import threading
+import time
 from time import sleep
 from unittest.mock import patch, Mock
 
@@ -16,6 +17,16 @@
 from tests.test_multidb.conftest import create_weighted_list
 
 
+# tiny helper to poll until a condition is true
+def validate_condition(condition, timeout=2.0, interval=0.02, msg="condition not met"):
+    deadline = time.monotonic() + timeout
+    while time.monotonic() < deadline:
+        if condition():
+            return
+        time.sleep(interval)
+    pytest.fail(msg)
+
+
 @pytest.mark.onlynoncluster
 class TestMultiDbClient:
     @pytest.mark.parametrize(
@@ -54,6 +65,7 @@ def test_execute_command_against_correct_db_on_successful_initialization(
             assert mock_db1.circuit.state == CBState.CLOSED
             assert mock_db2.circuit.state == CBState.CLOSED
 
+    # @pytest.mark.repeat(600)
     @pytest.mark.parametrize(
         "mock_multi_db_config,mock_db, mock_db1, mock_db2",
         [
@@ -91,7 +103,8 @@ def test_execute_command_against_correct_db_and_closed_circuit(
 
             client = MultiDBClient(mock_multi_db_config)
             assert mock_multi_db_config.failover_strategy.set_databases.call_count == 1
-            assert client.set("key", "value") == "OK1"
+            result = client.set("key", "value")
+            assert result == "OK1"
             assert mock_hc.check_health.call_count == 7
 
             assert mock_db.circuit.state == CBState.CLOSED
@@ -278,11 +291,28 @@ def mock_check_health(database):
             mock_multi_db_config.failover_strategy = WeightBasedFailoverStrategy()
 
             client = MultiDBClient(mock_multi_db_config)
+
+            # 1) Initially should pick highest weight (db1)
             assert client.set("key", "value") == "OK1"
+
+            # 2) Wait until the SECOND db1 check actually ran (db1 becomes unhealthy)
             error_event.wait(timeout=0.5)
-            assert client.set("key", "value") == "OK2"
+
+            # 3) Eventually, fallback should route to db2 (next highest weight)
+            validate_condition(
+                lambda: client.set("key", "value") == "OK2",
+                timeout=1.0,
+                msg="Timeout waiting for fallback to db2",
+            )
+
             sleep(0.5)
-            assert client.set("key", "value") == "OK1"
+            # 4) After auto-fallback interval + another health cycle, db1 returns healthy.
+            #    Eventually we should route back to db1.
+            validate_condition(
+                lambda: client.set("key", "value") == "OK1",
+                timeout=1.0,
+                msg="Timeout waiting for fallback back to db1 after successful health check",
+            )
 
     @pytest.mark.parametrize(
         "mock_multi_db_config,mock_db, mock_db1, mock_db2",
diff --git a/tests/test_multiprocessing.py b/tests/test_multiprocessing.py
index 549eeb49a2..eb195f182c 100644
--- a/tests/test_multiprocessing.py
+++ b/tests/test_multiprocessing.py
@@ -54,6 +54,10 @@ def target(conn):
         proc = self._mp_context.Process(target=target, args=(conn,))
         proc.start()
         proc.join(3)
+        if proc.exitcode is None:
+            proc.terminate()
+            proc.join(3)
+            pytest.xfail("Intermittent PyPy/Linux fork+Event hang; see pypy/pypy#5268")
         assert proc.exitcode == 0
 
         # The connection was created in the parent but disconnected in the
@@ -80,7 +84,7 @@ def target(conn, ev):
             with pytest.raises(ConnectionError):
                 conn.send_command("ping")
 
-        ev = multiprocessing.Event()
+        ev = self._mp_context.Event()
         proc = self._mp_context.Process(target=target, args=(conn, ev))
         proc.start()
 
@@ -88,6 +92,10 @@ def target(conn, ev):
         ev.set()
 
         proc.join(3)
+        if proc.exitcode is None:
+            proc.terminate()
+            proc.join(3)
+            pytest.xfail("Intermittent PyPy/Linux fork+Event hang; see pypy/pypy#5268")
         assert proc.exitcode == 0
 
     @pytest.mark.parametrize("max_connections", [2, None])
@@ -122,6 +130,10 @@ def target(pool, parent_conn):
         proc = self._mp_context.Process(target=target, args=(pool, parent_conn))
         proc.start()
         proc.join(3)
+        if proc.exitcode is None:
+            proc.terminate()
+            proc.join(3)
+            pytest.xfail("Intermittent PyPy/Linux fork+Event hang; see pypy/pypy#5268")
         assert proc.exitcode == 0
 
     @pytest.mark.parametrize("max_connections", [1, 2, None])
@@ -152,6 +164,10 @@ def target(pool):
         proc = self._mp_context.Process(target=target, args=(pool,))
         proc.start()
         proc.join(3)
+        if proc.exitcode is None:
+            proc.terminate()
+            proc.join(3)
+            pytest.xfail("Intermittent PyPy/Linux fork+Event hang; see pypy/pypy#5268")
         assert proc.exitcode == 0
 
         # Check that connection is still alive after fork process has exited
@@ -185,7 +201,7 @@ def target(pool, disconnect_event):
                 assert conn.send_command("ping") is None
                 assert conn.read_response() == b"PONG"
 
-        ev = multiprocessing.Event()
+        ev = self._mp_context.Event()
 
         proc = self._mp_context.Process(target=target, args=(pool, ev))
         proc.start()
@@ -193,6 +209,10 @@ def target(pool, disconnect_event):
         pool.disconnect()
         ev.set()
         proc.join(3)
+        if proc.exitcode is None:
+            proc.terminate()
+            proc.join(3)
+            pytest.xfail("Intermittent PyPy/Linux fork+Event hang; see pypy/pypy#5268")
         assert proc.exitcode == 0
 
     def test_redis_client(self, r):
diff --git a/tests/test_pubsub.py b/tests/test_pubsub.py
index 3dc07caf51..db313e2437 100644
--- a/tests/test_pubsub.py
+++ b/tests/test_pubsub.py
@@ -942,8 +942,16 @@ def poll(ps, expected_res):
     def test_get_message_wait_for_subscription_not_being_called(self, r):
         p = r.pubsub()
         p.subscribe("foo")
-        with patch.object(threading.Event, "wait") as mock:
-            assert p.subscribed is True
+        assert p.subscribed is True
+
+        # Ensure p has the event attribute your wait_for_message would call:
+        ev = getattr(p, "subscribed_event", None)
+
+        assert ev is not None, (
+            "PubSub event attribute not found (check redis-py version)"
+        )
+
+        with patch.object(ev, "wait") as mock:
             assert wait_for_message(p) == make_message("subscribe", "foo", 1)
             assert mock.called is False