diff --git a/README.md b/README.md
index 252e751..1576973 100644
--- a/README.md
+++ b/README.md
@@ -14,4 +14,6 @@ Yubikey Book.
 <br>
 
 * https://developers.yubico.com/yubico-piv-tool/
+* https://developers.yubico.com/yubikey-manager-qt/
+* https://developers.yubico.com/yubikey-personalization-gui/