diff --git a/appveyor.yml b/appveyor.yml
index 451fa4f4..261e50f0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,11 +10,11 @@ environment:
     - PYTHON_VERSION: 3.6
       MINICONDA: C:\Miniconda36-x64
     - PYTHON_VERSION: 3.7
-      MINICONDA: C:\Miniconda36-x64
+      MINICONDA: C:\Miniconda37-x64
     - PYTHON_VERSION: 3.8
-      MINICONDA: C:\Miniconda36-x64
+      MINICONDA: C:\Miniconda38-x64
     - PYTHON_VERSION: 3.9
-      MINICONDA: C:\Miniconda36-x64
+      MINICONDA: C:\Miniconda38-x64
 
 #configuration:
 #  - Debug