diff --git a/appveyor.yml b/appveyor.yml
index e6e2c5a8..54163ed2 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,6 +10,21 @@ environment:
 
   matrix:
 
+    - PYTHON: "C:\\Python27-x64"
+      PYTHON_VERSION: "2.7.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py27"
+
+    - PYTHON: "C:\\Python34-x64"
+      PYTHON_VERSION: "3.4.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py34"
+
+    - PYTHON: "C:\\Python35-x64"
+      PYTHON_VERSION: "3.5.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py35"
+
     - PYTHON: "C:\\Python36-x64"
       PYTHON_VERSION: "3.6.x"
       PYTHON_ARCH: "64"