diff --git a/contentprovider-sample/README.md b/contentprovider-sample/README.md
index 85de7853..13998b3e 100644
--- a/contentprovider-sample/README.md
+++ b/contentprovider-sample/README.md
@@ -13,8 +13,8 @@ It is not intended as a product quality extension.
 
 # How it works, what it shows?
 
-- The extension implements and registers a [`TextDocumentContentProvider`](http://code.visualstudio.com/docs/extensionAPI/vscode-api#TextDocumentContentProvider) for a particular URI scheme.
-- The content provider uses the [`vscode.executeReferenceProvider`](http://code.visualstudio.com/docs/extensionAPI/vscode-api-commands)-API command to delegate searching for references to the language extensions, like TypeScript, vscode-go, or C#
+- The extension implements and registers a [`TextDocumentContentProvider`](https://code.visualstudio.com/docs/extensionAPI/vscode-api#TextDocumentContentProvider) for a particular URI scheme.
+- The content provider uses the [`vscode.executeReferenceProvider`](https://code.visualstudio.com/docs/extensionAPI/vscode-api-commands)-API command to delegate searching for references to the language extensions, like TypeScript, vscode-go, or C#
 - The generated document initially contains a caption only and incrementally updates as each reference location is resolved.
 - Add links for each result in the virtual document pointing to the reference.
 - Add an entry to editor context menu via `package.json`
diff --git a/contentprovider-sample/src/provider.ts b/contentprovider-sample/src/provider.ts
index 49160d9c..a1e0112a 100644
--- a/contentprovider-sample/src/provider.ts
+++ b/contentprovider-sample/src/provider.ts
@@ -47,7 +47,7 @@ export default class Provider implements vscode.TextDocumentContentProvider, vsc
 		}
 
 		// Decode target-uri and target-position from the provided uri and execute the
-		// `reference provider` command (http://code.visualstudio.com/docs/extensionAPI/vscode-api-commands).
+		// `reference provider` command (https://code.visualstudio.com/docs/extensionAPI/vscode-api-commands).
 		// From the result create a references document which is in charge of loading,
 		// printing, and formatting references
 		const [target, pos] = decodeLocation(uri);
diff --git a/fsprovider-sample/CHANGELOG.md b/fsprovider-sample/CHANGELOG.md
index ae57d26c..e7f4436e 100644
--- a/fsprovider-sample/CHANGELOG.md
+++ b/fsprovider-sample/CHANGELOG.md
@@ -1,7 +1,7 @@
 # Change Log
 All notable changes to the "vscode-file-system-sample" extension will be documented in this file.
 
-Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
+Check [Keep a Changelog](https://keepachangelog.com/) for recommendations on how to structure this file.
 
 ## [Unreleased]
 - Initial release
\ No newline at end of file
diff --git a/legacy-samples/previewhtml-sample/README.md b/legacy-samples/previewhtml-sample/README.md
index 84f0f50d..5ca36cd0 100644
--- a/legacy-samples/previewhtml-sample/README.md
+++ b/legacy-samples/previewhtml-sample/README.md
@@ -24,7 +24,7 @@ The purpose of the extension is to show a preview of the properties in the decla
 
 # How it works
 
-- The extension implements and registers a [`TextDocumentContentProvider`](http://code.visualstudio.com/docs/extensionAPI/vscode-api#TextDocumentContentProvider) for a particular URI scheme.
+- The extension implements and registers a [`TextDocumentContentProvider`](https://code.visualstudio.com/docs/extensionAPI/vscode-api#TextDocumentContentProvider) for a particular URI scheme.
 - The content provider creates a HTML document that contains the declaration block of the selected CSS rule in the active editor.
 - The generated HTML document contains a link that invokes a contributed command to highlight the CSS rule in the source editor
 - The generated HTML document is then opened in an editor in the 2nd Column using the command `vscode.previewHtml`.
diff --git a/vim-sample/vimtutor.txt b/vim-sample/vimtutor.txt
index 476f1043..cf456da8 100644
--- a/vim-sample/vimtutor.txt
+++ b/vim-sample/vimtutor.txt
@@ -953,7 +953,7 @@ NOTE:  Completion works for many commands.  Just try pressing CTRL-D and
       Publisher: New Riders
   The first book completely dedicated to Vim.  Especially useful for beginners.
   There are many examples and pictures.
-  See http://iccf-holland.org/click5.html
+  See https://iccf-holland.org/click5.html
 
   This book is older and more about Vi than Vim, but also recommended:
       Learning the Vi Editor - by Linda Lamb