diff --git a/docs/installing-solidity.rst b/docs/installing-solidity.rst
index 9eb0ee76f..c46767366 100644
--- a/docs/installing-solidity.rst
+++ b/docs/installing-solidity.rst
@@ -380,7 +380,7 @@ Prerequisites - macOS
 ---------------------
 
 For macOS builds, ensure that you have the latest version of
-`Xcode installed <https://developer.apple.com/xcode/download/>`_.
+`Xcode installed <https://developer.apple.com/xcode/resources/>`_.
 This contains the `Clang C++ compiler <https://en.wikipedia.org/wiki/Clang>`_, the
 `Xcode IDE <https://en.wikipedia.org/wiki/Xcode>`_ and other Apple development
 tools that are required for building C++ applications on OS X.
diff --git a/docs/resources.rst b/docs/resources.rst
index f51dba4bd..84df74fb7 100644
--- a/docs/resources.rst
+++ b/docs/resources.rst
@@ -71,7 +71,7 @@ Editor Integrations
 
 * Visual Studio Code (VS Code)
 
-    * `Ethereum Remix Visual Studio Code extension <https://marketplace.visualstudio.com/items?itemName=RemixProject.ethereum-remix>`_
+    * `Ethereum Remix Visual Studio Code extension <https://github.com/ethereum/remix-vscode>`_
         Ethereum Remix extension pack for VS Code
 
     * `Solidity Visual Studio Code extension, by Juan Blanco <https://juan.blanco.ws/solidity-contracts-in-visual-studio-code/>`_
@@ -113,9 +113,6 @@ Solidity Tools
 * `leafleth <https://github.com/clemlak/leafleth>`_
     A documentation generator for Solidity smart-contracts.
 
-* `PIET <https://piet.slock.it/>`_
-    A tool to develop, audit and use Solidity smart contracts through a simple graphical interface.
-
 * `Scaffold-ETH <https://github.com/scaffold-eth/scaffold-eth>`_
     Forkable Ethereum development stack focused on fast product iterations.