diff --git a/.appveyor.yml b/.appveyor.yml
index 6f1ca0f9..1e143afa 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -33,8 +33,8 @@ cache:
 
 
 environment:
-    openssl_ver: 1.0.2o
-    protobuf_ver: 3.6.0
+    openssl_ver: 1.0.2p
+    protobuf_ver: 3.6.1
     zlib_ver: 1.2.11
 
     matrix: