diff --git a/appveyor.yml b/appveyor.yml
index 63ba3aec2bc84854322684eb42e459f32ee7a4e1..759bd5334bc5e394199a72617b1dd251a14733dd 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,6 +18,8 @@ clone_depth: 1
 #   - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
 
 build_script:
+  - del C:\Windows\System32\libssl-*.dll C:\Windows\system32\libcrypto-*.dll
+  - del C:\Windows\SysWOW64\libssl-*.dll C:\Windows\SysWOW64\libcrypto-*.dll
   - C:\msys64\usr\bin\pacman -Syuu --needed --noconfirm --noprogressbar --overwrite \\*
   - ps: |
         $env:TIME_STRING=(get-date -UFormat "%Y-%m-%d").ToString()