diff --git a/appveyor.yml b/appveyor.yml
index fb8239aa882f9ffda9214573ea5f1b72967da40e..b6d25e599c54b8009e675892a2413a7829e26c49 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -21,6 +21,7 @@ install:
   - cmd: conda update -q conda
   - cmd: conda config --add channels conda-forge
   - cmd: conda install -c conda-forge pvl protobuf gdal numpy pandas sqlalchemy pyyaml networkx
+  - cmd: conda install conda-build anaconda-client pytest-cov
 
 build_script:
   - cmd: conda build .