diff --git a/README.md b/README.md
index 2f5cebc..f56b87b 100644
--- a/README.md
+++ b/README.md
@@ -876,7 +876,7 @@ class MyComparable:
     def __eq__(self, other):
         if isinstance(other, type(self)):
             return self.a == other.a
-        return False
+        return NotImplemented
 ```
 
 ### Hashable
@@ -894,7 +894,7 @@ class MyHashable:
     def __eq__(self, other):
         if isinstance(other, type(self)):
             return self.a == other.a
-        return False
+        return NotImplemented
     def __hash__(self):
         return hash(self.a)
 ```
diff --git a/index.html b/index.html
index d3af7c9..472f974 100644
--- a/index.html
+++ b/index.html
@@ -782,7 +782,7 @@ creature  = Creature()
     <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__eq__</span><span class="hljs-params">(self, other)</span>:</span>
         <span class="hljs-keyword">if</span> isinstance(other, type(self)):
             <span class="hljs-keyword">return</span> self.a == other.a
-        <span class="hljs-keyword">return</span> <span class="hljs-keyword">False</span>
+        <span class="hljs-keyword">return</span> <span class="hljs-built_in">NotImplemented</span>
 </code></pre>
 <h3 id="hashable">Hashable</h3>
 <ul>
@@ -799,7 +799,7 @@ creature  = Creature()
     <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__eq__</span><span class="hljs-params">(self, other)</span>:</span>
         <span class="hljs-keyword">if</span> isinstance(other, type(self)):
             <span class="hljs-keyword">return</span> self.a == other.a
-        <span class="hljs-keyword">return</span> <span class="hljs-keyword">False</span>
+        <span class="hljs-keyword">return</span> <span class="hljs-built_in">NotImplemented</span>
     <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__hash__</span><span class="hljs-params">(self)</span>:</span>
         <span class="hljs-keyword">return</span> hash(self.a)
 </code></pre>