diff --git a/setup.cfg b/setup.cfg
index e73657a..99a4180 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -46,7 +46,7 @@ install_requires =
     torch>=1.10.0
     numpy>=1.20
     catboost>=1.0.5
-    optuna>=2.10
+    optuna>=3.1
     loguru==.0.6.0
     xgboost>=1.6.1
     miracle-imputation>=0.1.3
diff --git a/src/hyperimpute/utils/optimizer.py b/src/hyperimpute/utils/optimizer.py
index a5b6d78..72f3603 100644
--- a/src/hyperimpute/utils/optimizer.py
+++ b/src/hyperimpute/utils/optimizer.py
@@ -4,6 +4,7 @@
 
 # third party
 import optuna
+from optuna.storages import JournalRedisStorage, JournalStorage
 import redis
 
 # hyperimpute absolute
@@ -21,17 +22,16 @@ def __init__(
     ):
         self.url = f"redis://{host}:{port}/"
 
-        self._optuna_storage = optuna.storages.RedisStorage(url=self.url)
+        self._optuna_storage = JournalStorage(JournalRedisStorage(url=self.url))
         self._client = redis.Redis.from_url(self.url)
 
-    def optuna(self) -> optuna.storages.RedisStorage:
+    def optuna(self) -> JournalStorage:
         return self._optuna_storage
 
     def client(self) -> redis.Redis:
         return self._client
 
 
-backend = RedisBackend()
 threshold = 40
 
 
@@ -104,7 +104,11 @@ def create_study(
     patience: int = threshold,
 ) -> Tuple[optuna.Study, ParamRepeatPruner]:
 
-    storage_obj = backend.optuna()
+    try:
+        backend = RedisBackend()
+        storage_obj = backend.optuna()
+    except BaseException:
+        storage_obj = None
 
     try:
         study = optuna.create_study(
diff --git a/src/hyperimpute/version.py b/src/hyperimpute/version.py
index 6b07f98..3f40b97 100644
--- a/src/hyperimpute/version.py
+++ b/src/hyperimpute/version.py
@@ -1,2 +1,4 @@
-__version__ = "0.1.12"
-MAJOR_VERSION = "0.1"
+__version__ = "0.1.13"
+
+MAJOR_VERSION = ".".join(__version__.split(".")[:-1])
+MINOR_VERSION = __version__.split(".")[-1]