diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4d18f236c5e..0631df25c57 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -108,11 +108,12 @@ jobs:
       # See https://github.com/cygwin/cygwin-install-action#parameters
       # Note that https://github.com/egor-tensin/setup-cygwin fails to install packages.
       - name: Setup Cygwin
-        uses: cygwin/cygwin-install-action@db475590d56881c6cef7b3f96f6f3dd9532ea1f4 # master
+        uses: cygwin/cygwin-install-action@006ad0b0946ca6d0a3ea2d4437677fa767392401 # master
         with:
           platform: x86_64
           packages: bash make gcc-g++ cmake automake patch pkg-config tcl unzip
           install-dir: C:\cygwin64
+          check-sig: false
       ##################################################################################################################
       - name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ebde4797635..26ae96d0cce 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -60,7 +60,7 @@ jobs:
           platform: x86_64
           packages: bash make gcc-g++ cmake automake patch pkg-config tcl unzip
           install-dir: C:\cygwin64
-          check-sig: false
+          check-sig: true
       ##################################################################################################################
       - name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0