diff --git a/doc/win-dev.ps1 b/doc/win-dev.ps1
index d2fc8bead..36c04fab5 100644
--- a/doc/win-dev.ps1
+++ b/doc/win-dev.ps1
@@ -14,7 +14,7 @@ function ThrowOnNativeFailure {
 $VsVersion = 2019
 $MsvcVersion = '14.2'
 $BoostVersion = @(1, 80, 0)
-$OpensslVersion = '1_1_1s'
+$OpensslVersion = '1_1_1t'
 
 switch ($Env:BITS) {
 	32 { }
diff --git a/tools/win32/configure.ps1 b/tools/win32/configure.ps1
index 295436ee9..c67dd9bb7 100644
--- a/tools/win32/configure.ps1
+++ b/tools/win32/configure.ps1
@@ -30,7 +30,7 @@ if (-not (Test-Path env:CMAKE_GENERATOR_PLATFORM)) {
   }
 }
 if (-not (Test-Path env:OPENSSL_ROOT_DIR)) {
-  $env:OPENSSL_ROOT_DIR = "c:\local\OpenSSL_1_1_1s-Win${env:BITS}"
+  $env:OPENSSL_ROOT_DIR = "c:\local\OpenSSL_1_1_1t-Win${env:BITS}"
 }
 if (-not (Test-Path env:BOOST_ROOT)) {
   $env:BOOST_ROOT = "c:\local\boost_1_80_0-Win${env:BITS}"