diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc04ada7..62ac274b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## [1.4.0] - 2020-08-24
+
+- Added set lastmod date command
+
 ## [1.3.0] - 2020-08-22
 
 - Added SEO description warning when over 140 characters is used
@@ -61,4 +65,4 @@
 
 ## [0.0.1] - 2019-08-26
 
-- Initial beta version
\ No newline at end of file
+- Initial beta version
diff --git a/README.md b/README.md
index 2be12568..f79ecdc4 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,12 @@ Update the `date` property of the current article/post/... to the current date &
 
 **Optional**: if you want, you can specify the date property format by adding your preference in your settings. Settings key: `frontMatter.taxonomy.dateFormat`. Check [date-fns formatting](https://date-fns.org/v2.0.1/docs/format) for more information on which patterns you can use.
 
+**Front Matter: Set lastmod date**
+
+Update the `lastmod` (last modified) property of the current article/post/... to the current date & time.
+
+**note**: Uses the same date format settings key as current date: `frontMatter.taxonomy.dateFormat`.
+
 **Front Matter: Generate slug based on article title**
 
 This command generates a clean slug for your article. It removes known stop words, punctuations, and special characters. 
@@ -105,4 +111,4 @@ The extension has more settings that allow you to configure it to your needs fur
 
 ## Feedback / issues / ideas
 
-Please submit them via creating an issue in the project repository: [issue list](https://github.com/estruyf/vscode-front-matter/issues).
\ No newline at end of file
+Please submit them via creating an issue in the project repository: [issue list](https://github.com/estruyf/vscode-front-matter/issues).
diff --git a/package.json b/package.json
index 36c138ea..0ce3c36b 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
 	"displayName": "Front Matter",
 	"description": "Simplifies working with front matter of your articles. Useful extension when you are using a static site generator like: Hugo, Jekyll, Hexo, NextJs, Gatsby, and many more...",
 	"icon": "assets/front-matter.png",
-	"version": "1.3.0",
+	"version": "1.4.0",
 	"preview": false,
 	"publisher": "eliostruyf",
 	"galleryBanner": {
@@ -45,6 +45,7 @@
 		"onCommand:frontMatter.exportTaxonomy",
 		"onCommand:frontMatter.remap",
 		"onCommand:frontMatter.setDate",
+		"onCommand:frontMatter.setLastModifiedDate",
 		"onCommand:frontMatter.generateSlug"
 	],
 	"main": "./dist/extension",
@@ -125,6 +126,10 @@
 				"command": "frontMatter.setDate",
 				"title": "Front Matter: Set current date"
 			},
+			{
+				"command": "frontMatter.setLastModifiedDate",
+				"title": "Front Matter: Set lastmod date"
+			},
 			{
 				"command": "frontMatter.generateSlug",
 				"title": "Front Matter: Generate slug based on article title"
diff --git a/src/commands/Article.ts b/src/commands/Article.ts
index b142ae48..3fa0ae88 100644
--- a/src/commands/Article.ts
+++ b/src/commands/Article.ts
@@ -9,8 +9,8 @@ export class Article {
 
   /**
   * Insert taxonomy
-  * 
-  * @param type 
+  *
+  * @param type
   */
   public static async insert(type: TaxonomyType) {
     const config = vscode.workspace.getConfiguration(CONFIG_KEY);
@@ -18,15 +18,15 @@ export class Article {
     if (!editor) {
       return;
     }
-    
+
     const article = ArticleHelper.getFrontMatter(editor);
     if (!article) {
       return;
     }
-    
+
     let options: vscode.QuickPickItem[] = [];
     const matterProp: string = type === TaxonomyType.Tag ? "tags" : "categories";
-    
+
     // Add the selected options to the options array
     if (article.data[matterProp]) {
       const propData = article.data[matterProp];
@@ -37,7 +37,7 @@ export class Article {
         } as vscode.QuickPickItem));
       }
     }
-    
+
     // Add all the known options to the selection list
     const crntOptions = SettingsHelper.getTaxonomy(type);
     if (crntOptions && crntOptions.length > 0) {
@@ -49,21 +49,21 @@ export class Article {
         }
       }
     }
-    
+
     if (options.length === 0) {
       vscode.window.showInformationMessage(`${EXTENSION_NAME}: No ${type === TaxonomyType.Tag ? "tags" : "categories"} configured.`);
       return;
     }
-    
-    const selectedOptions = await vscode.window.showQuickPick(options, { 
+
+    const selectedOptions = await vscode.window.showQuickPick(options, {
       placeHolder: `Select your ${type === TaxonomyType.Tag ? "tags" : "categories"} to insert`,
-      canPickMany: true 
+      canPickMany: true
     });
-    
+
     if (selectedOptions) {
       article.data[matterProp] = selectedOptions.map(o => o.label);
     }
-    
+
     ArticleHelper.update(editor, article);
   }
 
@@ -89,7 +89,37 @@ export class Article {
       } else {
         article.data["date"] = new Date();
       }
-      
+
+      ArticleHelper.update(editor, article);
+    } catch (e) {
+      vscode.window.showErrorMessage(`${EXTENSION_NAME}: Something failed while parsing the date format. Check your "${CONFIG_KEY}${SETTING_DATE_FORMAT}" setting.`);
+      console.log(e.message);
+    }
+  }
+
+  /**
+   * Sets the article lastmod date
+   */
+  public static async setLastModifiedDate() {
+    const config = vscode.workspace.getConfiguration(CONFIG_KEY);
+    const editor = vscode.window.activeTextEditor;
+    if (!editor) {
+      return;
+    }
+
+    const article = ArticleHelper.getFrontMatter(editor);
+    if (!article) {
+      return;
+    }
+
+    const dateFormat = config.get(SETTING_DATE_FORMAT) as string;
+    try {
+      if (dateFormat && typeof dateFormat === "string") {
+        article.data["lastmod"] = format(new Date(), dateFormat);
+      } else {
+        article.data["lastmod"] = new Date();
+      }
+
       ArticleHelper.update(editor, article);
     } catch (e) {
       vscode.window.showErrorMessage(`${EXTENSION_NAME}: Something failed while parsing the date format. Check your "${CONFIG_KEY}${SETTING_DATE_FORMAT}" setting.`);
@@ -139,4 +169,4 @@ export class Article {
     article.data["draft"] = newDraftStatus;
     ArticleHelper.update(editor, article);
   }
-}
\ No newline at end of file
+}
diff --git a/src/extension.ts b/src/extension.ts
index 33323bd8..ea841de0 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -32,11 +32,15 @@ export function activate({ subscriptions }: vscode.ExtensionContext) {
 	let remap = vscode.commands.registerCommand('frontMatter.remap', () => {
 		Settings.remap();
 	});
-	
+
 	let setDate = vscode.commands.registerCommand('frontMatter.setDate', () => {
 		Article.setDate();
 	});
 
+	let setLastModifiedDate = vscode.commands.registerCommand('frontMatter.setLastModifiedDate', () => {
+		Article.setLastModifiedDate();
+	});
+
 	let generateSlug = vscode.commands.registerCommand('frontMatter.generateSlug', () => {
 		Article.generateSlug();
 	});
@@ -66,6 +70,7 @@ export function activate({ subscriptions }: vscode.ExtensionContext) {
 	subscriptions.push(exportTaxonomy);
 	subscriptions.push(remap);
 	subscriptions.push(setDate);
+	subscriptions.push(setLastModifiedDate);
 	subscriptions.push(generateSlug);
 	subscriptions.push(toggleDraft);
 }
@@ -84,4 +89,4 @@ const debounceShowDraftTrigger = () => {
     clearTimeout(timeout);
     timeout = setTimeout(functionCall, time);
   };
-};
\ No newline at end of file
+};