diff --git a/types/katex/index.d.ts b/types/katex/index.d.ts
index 19c7e79d06..ae126b3444 100644
--- a/types/katex/index.d.ts
+++ b/types/katex/index.d.ts
@@ -1,14 +1,90 @@
-// Type definitions for KaTeX 0.5
+// Type definitions for KaTeX 0.10
 // Project: http://khan.github.io/KaTeX/
 // Definitions by: Michael Randolph <https://github.com/mrand01>
+//                 Kevin Nguyen <https://github.com/knguyen0125>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 export as namespace katex;
 
+/** Documentation: https://katex.org/docs/options.html */
 export interface KatexOptions {
+    /**
+     * If `true`, math will be rendered in display mode 
+     * (math in display style and center math on page)
+     * 
+     * If `false`, math will be rendered in inline mode
+     * @default false
+     */
     displayMode?: boolean;
-    breakOnUnsupportedCmds?: boolean;
+    /**
+     * If `true`, KaTeX will throw a `ParseError` when 
+     * it encounters an unsupported command or invalid LaTex
+     * 
+     * If `false`, KaTeX will render unsupported commands as
+     * text, and render invalid LaTeX as its source code with
+     * hover text giving the error, in color given by errorColor
+     * @default true
+     */
+    throwOnError?: boolean;
+    /**
+     * A Color string given in format `#XXX` or `#XXXXXX`
+     */
     errorColor?: string;
+    /**
+     * A collection of custom macros.
+     * 
+     * See `src/macros.js` for its usage
+     */
+    macros?: any;
+    /**
+     * If `true`, `\color` will work like LaTeX's `\textcolor`
+     * and takes 2 arguments
+     * 
+     * If `false`, `\color` will work like LaTeX's `\color`
+     * and takes 1 argument
+     * 
+     * In both cases, `\textcolor` works as in LaTeX
+     * 
+     * @default false
+     */
+    colorIsTextColor?: boolean;
+    /**
+     * All user-specified sizes will be caped to `maxSize` ems
+     * 
+     * If set to Infinity, users can make elements and space
+     * arbitrarily large
+     * 
+     * @default Infinity
+     */
+    maxSize?: number;
+    /**
+     * Limit the number of macro expansions to specified number
+     * 
+     * If set to `Infinity`, marco expander will try to fully expand
+     * as in LaTex
+     * 
+     * @default 1000
+     */
+    maxExpand?: number;
+    /**
+     * Allowed protocols in `\href`
+     * 
+     * Use `_relative` to allow relative urls
+     * 
+     * Use `*` to allow all protocols
+     */
+    allowedProtocols?: string[]
+    /**
+     * If `false` or `"ignore"`, allow features that make
+     * writing in LaTex convenient but not supported by LaTex
+     * 
+     * If `true` or `"error"`, throw an error for such transgressions
+     * 
+     * If `"warn"`, warn about behavior via `console.warn`
+     * 
+     * @default "warn"
+     */
+    strict?: boolean | string | Function;
 }
 
 export class ParseError implements Error {
diff --git a/types/katex/katex-tests.ts b/types/katex/katex-tests.ts
index 77e745d6a0..6fd614c82c 100644
--- a/types/katex/katex-tests.ts
+++ b/types/katex/katex-tests.ts
@@ -5,7 +5,7 @@ class KatexTest {
 		katexLib.render('My Latex String', document.createElement('div'));
 
 		try {
-			let options: katexLib.KatexOptions = { breakOnUnsupportedCmds: true };
+			let options: katexLib.KatexOptions = { throwOnError: true };
 			let value: string = katexLib.renderToString('My Latex String', options);
 		} catch (error) {
 			if (error instanceof katexLib.ParseError) {