diff --git a/8-Reinforcement/1-QLearning/solution/assignment-solution.ipynb b/8-Reinforcement/1-QLearning/solution/assignment-solution.ipynb
index 9c1adae00..dc5c0e682 100644
--- a/8-Reinforcement/1-QLearning/solution/assignment-solution.ipynb
+++ b/8-Reinforcement/1-QLearning/solution/assignment-solution.ipynb
@@ -246,7 +246,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Q = np.ones((width,height,len(actions)),dtype=np.float)*1.0/len(actions)"
+    "Q = np.ones((width,height,len(actions)),dtype=np.float64)*1.0/len(actions)"
    ]
   },
   {
diff --git a/8-Reinforcement/1-QLearning/solution/notebook.ipynb b/8-Reinforcement/1-QLearning/solution/notebook.ipynb
index de19ad0bd..9bbc6c95c 100644
--- a/8-Reinforcement/1-QLearning/solution/notebook.ipynb
+++ b/8-Reinforcement/1-QLearning/solution/notebook.ipynb
@@ -264,7 +264,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Q = np.ones((width,height,len(actions)),dtype=np.float)*1.0/len(actions)"
+    "Q = np.ones((width,height,len(actions)),dtype=np.float64)*1.0/len(actions)"
    ]
   },
   {
diff --git a/8-Reinforcement/2-Gym/solution/notebook.ipynb b/8-Reinforcement/2-Gym/solution/notebook.ipynb
index b6338c896..b576eb27e 100644
--- a/8-Reinforcement/2-Gym/solution/notebook.ipynb
+++ b/8-Reinforcement/2-Gym/solution/notebook.ipynb
@@ -209,7 +209,7 @@
    "outputs": [],
    "source": [
     "def discretize(x):\n",
-    "    return tuple((x/np.array([0.25, 0.25, 0.01, 0.1])).astype(np.int))"
+    "    return tuple((x/np.array([0.25, 0.25, 0.01, 0.1])).astype(np.int_))"
    ]
   },
   {