diff --git a/requirements.txt b/requirements.txt
index f954975..34cab2f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,22 +1,22 @@
-cycler==0.11.0
-fonttools==4.33.1
-joblib==1.2.0
-kiwisolver==1.4.2
-llvmlite==0.38.0
-matplotlib==3.5.1
-numba==0.55.1
-numpy==1.22.0
-packaging==21.3
-pandas==1.3.5
-Pillow==10.0.1
-pyparsing==3.0.8
+cycler==0.12.1
+fonttools==4.45.0
+joblib==1.3.2
+kiwisolver==1.4.5
+llvmlite==0.41.1
+matplotlib==3.8.2
+numba==0.58.1
+numpy==1.26.2
+packaging==23.2
+pandas==2.1.3
+Pillow==10.1.0
+pyparsing==3.1.1
 python-dateutil==2.8.2
-pytz==2022.1
-scikit-learn==1.0.2
-scipy==1.10.0
-seaborn==0.11.2
+pytz==2023.3.post1
+scikit-learn==1.3.2
+scipy==1.11.4
+seaborn==0.13.0
 six==1.16.0
-threadpoolctl==3.1.0
-torch==1.13.1
-tqdm==4.64.0
-typing_extensions==4.2.0
+threadpoolctl==3.2.0
+torch==2.1.1
+tqdm==4.66.1
+typing_extensions==4.8.0
diff --git a/src/Impression.py b/src/Impression.py
index ec6cf76..7158c6e 100644
--- a/src/Impression.py
+++ b/src/Impression.py
@@ -14,8 +14,8 @@ class ImpressionOpportunity:
     estimated_CTR: np.float32
     price: np.float32
     second_price: np.float32
-    outcome: np.bool
-    won: np.bool
+    outcome: bool
+    won: bool
 
     def set_true_CTR(self, best_expected_value, true_CTR):
         self.best_expected_value = best_expected_value  # Best possible CTR (to compute regret from ad allocation)