diff --git a/types/anchor-js/anchor-js-tests.ts b/types/anchor-js/anchor-js-tests.ts
index a27e09605a..c41b375cfd 100644
--- a/types/anchor-js/anchor-js-tests.ts
+++ b/types/anchor-js/anchor-js-tests.ts
@@ -14,3 +14,12 @@ const footerAnchors = new AnchorJS({
     placement: 'right',
 });
 footerAnchors.remove('.links');
+
+anchors.options = {
+    placement: 'left',
+    visible: 'always',
+    icon: '¶'
+};
+
+anchors.options.base = '/2019/1/03/my-post';
+anchors.options.titleText = 'Click to directly link to this section.';
diff --git a/types/anchor-js/index.d.ts b/types/anchor-js/index.d.ts
index 1f59c295e2..04d8a037fb 100644
--- a/types/anchor-js/index.d.ts
+++ b/types/anchor-js/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for anchor-js 4.1
+// Type definitions for anchor-js 4.2
 // Project: https://github.com/bryanbraun/anchorjs
 // Definitions by: Brian Surowiec <https://github.com/xt0rted>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -16,10 +16,12 @@ declare namespace anchorjs {
     type AnchorVisibility = 'always' | 'hover' | 'touch';
 
     interface AnchorOptions {
-        arialabel?: string;
+        ariaLabel?: string;
+        base?: string;
         class?: string;
-        icons?: string;
+        icon?: string;
         placement?: AnchorPlacement;
+        titleText?: string;
         truncate?: number;
         visible?: AnchorVisibility;
     }