diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d382604..5458fdb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,12 +6,22 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Install dependencies
+        shell: pwsh
         run: |
-          vcpkg install fmt:x86-windows-static
+          pushd .
+          cd ${env:VCPKG_INSTALLATION_ROOT}
+
+          git reset --hard 3b3bd424827a1f7f4813216f6b32b6c61e386b2e
           vcpkg install openssl:x86-windows-static
+
+          git reset --hard f65d6947c7212618c00dcc99ecd53c47db97f8cd
+          vcpkg install unicorn:x86-windows-static
+
+          git pull
+          vcpkg install fmt:x86-windows-static
           vcpkg install rapidjson:x86-windows-static
           vcpkg install keystone:x86-windows-static
-          vcpkg install unicorn:x86-windows-static
+          popd
 
       - name: Clone source
         uses: actions/checkout@v2
@@ -35,11 +45,20 @@ jobs:
     steps:
       - name: Install dependencies
         run: |
-          vcpkg install fmt:x64-windows-static
-          vcpkg install openssl:x64-windows-static
-          vcpkg install rapidjson:x64-windows-static
-          vcpkg install keystone:x64-windows-static
-          vcpkg install unicorn:x64-windows-static
+          pushd .
+          cd ${env:VCPKG_INSTALLATION_ROOT}
+
+          git reset --hard 3b3bd424827a1f7f4813216f6b32b6c61e386b2e
+          vcpkg install openssl:x86-windows-static
+
+          git reset --hard f65d6947c7212618c00dcc99ecd53c47db97f8cd
+          vcpkg install unicorn:x86-windows-static
+
+          git pull
+          vcpkg install fmt:x86-windows-static
+          vcpkg install rapidjson:x86-windows-static
+          vcpkg install keystone:x86-windows-static
+          popd
 
       - name: Clone source
         uses: actions/checkout@v2