diff --git a/environment.nightly.yml b/environment.nightly.yml
index ec99928..f70bb33 100644
--- a/environment.nightly.yml
+++ b/environment.nightly.yml
@@ -6,16 +6,16 @@ channels:
 
 dependencies:
 - python>=3.7.3
-# Anaconda 2019.03 python 3.7
-- cython>=0.29.6
+# Anaconda 2019.07 python 3.7 Win64
+- cython>=0.29.12
 - jupyter>=1.0.0
-- matplotlib>=3.0.3
-- numpy>=1.16.2
+- matplotlib>=3.1.0
+- numpy>=1.16.4
 - pandas>=0.24.2
-- pluggy>=0.11
-- pytest>=4.3.1
-- requests>=2.21.0
+- pluggy>=0.12.0
+- pytest>=5.0.1
+- requests>=2.22.0
 - scipy>=1.2.1
-- statsmodels>=0.9.0
-- sympy>=1.3
-- pytest-xdist>=1.28.0
+- statsmodels>=0.10.0
+- sympy>=1.4
+- pytest-xdist