diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b5b47c4..ae952ef8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,6 +25,9 @@ jobs:
     name: ${{ matrix.target.name }} / ${{ matrix.version }}
     runs-on: ${{ matrix.target.os }}
 
+    env:
+      VCPKGRS_DYNAMIC: 1
+
     steps:
       - name: Setup Routing
         if: matrix.target.os == 'macos-latest'
@@ -32,6 +35,14 @@ jobs:
 
       - uses: actions/checkout@v2
 
+      # install OpenSSL on Windows
+      - name: Set vcpkg root
+        if: matrix.target.triple == 'x86_64-pc-windows-msvc' || matrix.target.triple == 'i686-pc-windows-msvc'
+        run: echo "VCPKG_ROOT=$env:VCPKG_INSTALLATION_ROOT" | Out-File -FilePath $env:GITHUB_ENV -Append
+      - name: Install OpenSSL
+        if: matrix.target.triple == 'x86_64-pc-windows-msvc' || matrix.target.triple == 'i686-pc-windows-msvc'
+        run: vcpkg install openssl:x64-windows
+
       - name: Install ${{ matrix.version }}
         uses: actions-rs/toolchain@v1
         with: