diff --git a/README.md b/README.md
index bbcae2e..6feecec 100644
--- a/README.md
+++ b/README.md
@@ -1440,11 +1440,13 @@ BaseException
  +-- Exception                    # User-defined exceptions should be derived from this class.
       +-- ArithmeticError         # Base class for arithmetic errors.
       |    +-- ZeroDivisionError  # Raised when dividing by zero.
+      +-- AssertionError          # Raised by `assert <exp>` if expression returns false value.
       +-- AttributeError          # Raised when an attribute is missing.
       +-- EOFError                # Raised by input() when it hits end-of-file condition.
       +-- LookupError             # Raised when a look-up on a collection fails.
       |    +-- IndexError         # Raised when a sequence index is out of range.
       |    +-- KeyError           # Raised when a dictionary key or set element is missing.
+      +-- MemoryError             # Out of memory. Could be too late to start deleting vars.
       +-- NameError               # Raised when an object is missing.
       +-- OSError                 # Errors such as “file not found” or “disk full” (see Open).
       |    +-- FileNotFoundError  # When a file or directory is requested but doesn't exist.
diff --git a/index.html b/index.html
index 360a2d9..f335952 100644
--- a/index.html
+++ b/index.html
@@ -1236,11 +1236,13 @@ error_msg = <span class="hljs-string">''</span>.join(traceback.format_exception(
  └── Exception                    <span class="hljs-comment"># User-defined exceptions should be derived from this class.</span>
       ├── ArithmeticError         <span class="hljs-comment"># Base class for arithmetic errors.</span>
       │    └── ZeroDivisionError  <span class="hljs-comment"># Raised when dividing by zero.</span>
+      ├── AssertionError          <span class="hljs-comment"># Raised by `assert &lt;exp&gt;` if expression returns false value.</span>
       ├── AttributeError          <span class="hljs-comment"># Raised when an attribute is missing.</span>
       ├── EOFError                <span class="hljs-comment"># Raised by input() when it hits end-of-file condition.</span>
       ├── LookupError             <span class="hljs-comment"># Raised when a look-up on a collection fails.</span>
       │    ├── IndexError         <span class="hljs-comment"># Raised when a sequence index is out of range.</span>
       │    └── KeyError           <span class="hljs-comment"># Raised when a dictionary key or set element is missing.</span>
+      ├── MemoryError             <span class="hljs-comment"># Out of memory. Could be too late to start deleting vars.</span>
       ├── NameError               <span class="hljs-comment"># Raised when an object is missing.</span>
       ├── OSError                 <span class="hljs-comment"># Errors such as “file not found” or “disk full” (see Open).</span>
       │    └── FileNotFoundError  <span class="hljs-comment"># When a file or directory is requested but doesn't exist.</span>
diff --git a/parse.js b/parse.js
index d4ecd75..6a35c5b 100755
--- a/parse.js
+++ b/parse.js
@@ -218,11 +218,13 @@ const DIAGRAM_7_B =
   " └── Exception                    <span class='hljs-comment'># User-defined exceptions should be derived from this class.</span>\n" +
   "      ├── ArithmeticError         <span class='hljs-comment'># Base class for arithmetic errors.</span>\n" +
   "      │    └── ZeroDivisionError  <span class='hljs-comment'># Raised when dividing by zero.</span>\n" +
+  "      ├── AssertionError          <span class='hljs-comment'># Raised by `assert &lt;exp&gt;` if expression returns false value.</span>\n" +
   "      ├── AttributeError          <span class='hljs-comment'># Raised when an attribute is missing.</span>\n" +
   "      ├── EOFError                <span class='hljs-comment'># Raised by input() when it hits end-of-file condition.</span>\n" +
   "      ├── LookupError             <span class='hljs-comment'># Raised when a look-up on a collection fails.</span>\n" +
   "      │    ├── IndexError         <span class='hljs-comment'># Raised when a sequence index is out of range.</span>\n" +
   "      │    └── KeyError           <span class='hljs-comment'># Raised when a dictionary key or set element is missing.</span>\n" +
+  "      ├── MemoryError             <span class='hljs-comment'># Out of memory. Could be too late to start deleting vars.</span>\n" +
   "      ├── NameError               <span class='hljs-comment'># Raised when an object is missing.</span>\n" +
   "      ├── OSError                 <span class='hljs-comment'># Errors such as “file not found” or “disk full” (see Open).</span>\n" +
   "      │    └── FileNotFoundError  <span class='hljs-comment'># When a file or directory is requested but doesn't exist.</span>\n" +