diff --git a/windows/const.ps1 b/windows/const.ps1
index 946e71e5..793ceb54 100644
--- a/windows/const.ps1
+++ b/windows/const.ps1
@@ -7,7 +7,7 @@
 New-Variable -Name 'LIBRESSL_URL' `
     -Value 'https://ftp.openbsd.org/pub/OpenBSD/LibreSSL' `
     -Option Constant
-New-Variable -Name 'LIBRESSL' -Value 'libressl-3.8.2' -Option Constant
+New-Variable -Name 'LIBRESSL' -Value 'libressl-3.9.1' -Option Constant
 New-Variable -Name 'CRYPTO_LIBRARIES' -Value 'crypto' -Option Constant
 
 # libcbor coordinates.