diff --git a/tools/cmsc15_versions.bat b/tools/cmsc15_versions.bat
index 59a34f6..c26d2a0 100644
--- a/tools/cmsc15_versions.bat
+++ b/tools/cmsc15_versions.bat
@@ -19,6 +19,6 @@ set "CmscSys=64"
 set "CmscOsv=win7"
 set "NasmVer=2.15.05"
 set "PerlVer=5.32.1.1"
-set "CygwrunVer=1.1.6"
+set "CygwrunVer=1.1.7"
 set "CurlOpts=-qkL --retry 5 --no-progress-meter"
 set "WINVER=0x0601"