diff --git a/100 Numpy exercises.ipynb b/100 Numpy exercises.ipynb
index 78456cb..af52e7c 100644
--- a/100 Numpy exercises.ipynb	
+++ b/100 Numpy exercises.ipynb	
@@ -1113,8 +1113,8 @@
    },
    "outputs": [],
    "source": [
-    "Z = np.arange(10, dtype=np.int32)\n",
-    "Z = Z.astype(np.float32, copy=False)\n",
+    "Z = np.arange(10, dtype=np.float32)\n",
+    "Z = Z.astype(np.int32, copy=False)\n",
     "print(Z)"
    ]
   },
diff --git a/100 Numpy exercises.md b/100 Numpy exercises.md
index 799d1fa..381b95a 100644
--- a/100 Numpy exercises.md	
+++ b/100 Numpy exercises.md	
@@ -527,8 +527,8 @@ print(D)
 
 
 ```python
-Z = np.arange(10, dtype=np.int32)
-Z = Z.astype(np.float32, copy=False)
+Z = np.arange(10, dtype=np.float32)
+Z = Z.astype(np.int32, copy=False)
 print(Z)
 ```