diff --git a/.github/workflows/build-windows-cygwin.yml b/.github/workflows/build-windows-cygwin.yml
index 467d6778..dbb3f5de 100644
--- a/.github/workflows/build-windows-cygwin.yml
+++ b/.github/workflows/build-windows-cygwin.yml
@@ -21,6 +21,7 @@ jobs:
       - name: "Setup Cygwin"
         uses: cygwin/cygwin-install-action@v2
         with:
+          check-sig: false
           platform: x86_64
           packages: automake make cmake gcc-g++ doxygen graphviz libssl-devel libuuid-devel