diff --git a/README.md b/README.md
index b4a442d..f0cdda1 100644
--- a/README.md
+++ b/README.md
@@ -65,9 +65,9 @@ dependencies listed below. The necessary Apache configuration is inside the
 <details><summary>Windows 10 Instructions</summary>
 
 * Install Zwift
-  * If your Zwift version is newer than 1.0.48307 you may have to uninstall, then reinstall after installing zoffline.
-  * If your Zwift version is 1.0.48307, you're all set.
-  * If Zwift is not installed install it after installing zoffline (1.0.48307 will be installed instead of the latest).
+  * If your Zwift version is newer than 1.0.48638 you may have to uninstall, then reinstall after installing zoffline.
+  * If your Zwift version is 1.0.48638, you're all set.
+  * If Zwift is not installed install it after installing zoffline (1.0.48638 will be installed instead of the latest).
 * On your Windows machine running Zwift, copy the following files in this repo to a known location:
   * ``ssl/cert-zwift-com.p12``
   * ``ssl/cert-zwift-com.pem``
@@ -90,9 +90,9 @@ to generate your own certificates and do the same.
 <details><summary>Mac OS X Instructions (Thanks @oldnapalm!)</summary>
 
 * Install Zwift
-  * If your Zwift version is newer than 1.0.48307 you may have to uninstall, then reinstall after installing zoffline.
-  * If your Zwift version is 1.0.48307, you're all set.
-  * If Zwift is not installed install it after installing zoffline (1.0.48307 will be installed instead of the latest).
+  * If your Zwift version is newer than 1.0.48638 you may have to uninstall, then reinstall after installing zoffline.
+  * If your Zwift version is 1.0.48638, you're all set.
+  * If Zwift is not installed install it after installing zoffline (1.0.48638 will be installed instead of the latest).
 * On your Mac machine running Zwift, copy the following files in this repo to a known location:
   * ``ssl/cert-zwift-com.p12``
   * ``ssl/cert-zwift-com.pem``