diff --git a/load_demonstrations.py b/load_demonstrations.py
index 63dcae7..c6e21f6 100644
--- a/load_demonstrations.py
+++ b/load_demonstrations.py
@@ -7,10 +7,11 @@ from gym_recording_modified.playback import get_recordings
 from tqdm.auto import tqdm
 from replay_memory import ReplayMemory
 from pathlib import Path
+from loguru import logger
 
 def load_demonstrations(mem: ReplayMemory, recordings: Path):
     records = get_recordings(str(recordings))
-    print('picks in recordings', sum(records['reward']>10))
+    logger.info('picks in recordings', sum(records['reward']>10))
     ends=records["episodes_end_point"]
     for i in tqdm(range(len(ends)-1), desc='loading demonstrations'):
         a = ends[i]
diff --git a/replay_memory.py b/replay_memory.py
index 1675be3..37d6580 100644
--- a/replay_memory.py
+++ b/replay_memory.py
@@ -1,8 +1,9 @@
 import random
 import numpy as np
 import torch
-import pickle
+import hickle
 import os
+from loguru import logger
 
 class ReplayMemory:
     def __init__(self, capacity, seed):
@@ -26,12 +27,11 @@ class ReplayMemory:
         return len(self.buffer)
 
     def save(self, memory_path=None):
-        print('Saving memory to {}'.format(memory_path))
-        torch.save(self.buffer, memory_path)
+        logger.info(f'Saving memory to {memory_path}')
+        hickle.save(self.buffer, memory_path, compression='gzip', shuffle=True)
 
     def load(self, memory_path):
-        print('Loading memory from {}'.format(memory_path))
+        logger.info('Loading memory from {memory_path}')
         if memory_path is not None:
-            # print(self.buffer[0])
-            self.buffer = torch.load(memory_path)
+            self.buffer = hickle.load(memory_path)
             self.position = len(self.buffer)
diff --git a/sac.py b/sac.py
index 7743026..216a1cf 100644
--- a/sac.py
+++ b/sac.py
@@ -4,6 +4,7 @@ import torch.nn.functional as F
 from torch.optim import Adam
 from utils import soft_update, hard_update
 from model import GaussianPolicy, QNetwork, DeterministicPolicy
+from loguru import logger
 
 
 class SAC(object):
@@ -105,12 +106,13 @@ class SAC(object):
 
     # Save model parameters
     def save_model(self, actor_path=None, critic_path=None):
+        logger.debug(f'saving models to {actor_path} and {critic_path}'))
         torch.save(self.policy.state_dict(), actor_path)
         torch.save(self.critic.state_dict(), critic_path)
 
     # Load model parameters
     def load_model(self, actor_path, critic_path):
-        print('Loading models from {} and {}'.format(actor_path, critic_path))
+        logger.info(f'Loading models from {actor_path} and {critic_path}'))
         if actor_path is not None:
             self.policy.load_state_dict(torch.load(actor_path))
         if critic_path is not None: