diff --git a/environment.yml b/environment.yml
index fc35f1290f1b1..aa3f1fe15820e 100644
--- a/environment.yml
+++ b/environment.yml
@@ -4,22 +4,21 @@ channels:
   - conda-forge
 dependencies:
   # required
-  - NumPy
+  - numpy>=1.15
   - python=3
   - python-dateutil>=2.5.0
   - pytz
 
   # development
-  - Cython>=0.28.2
+  - cython>=0.28.2
   - flake8
   - flake8-comprehensions
   - flake8-rst=0.4.2
   - gitpython
-  - hypothesis>=3.58.0
+  - hypothesis>=3.82
   - isort
   - moto
-  - pytest>=3.6
-  - setuptools>=24.2.0
+  - pytest>=4.0
   - sphinx
   - sphinxcontrib-spelling
 
@@ -28,7 +27,6 @@ dependencies:
   - blosc
   - bottleneck>=1.2.0
   - fastparquet>=0.1.2
-  - gcsfs
   - html5lib
   - ipython>=5.6.0
   - ipykernel
@@ -36,15 +34,13 @@ dependencies:
   - lxml
   - matplotlib>=2.0.0
   - nbsphinx
-  - numexpr>=2.6.1
+  - numexpr>=2.6.8
   - openpyxl
   - pyarrow>=0.7.0
-  - pymysql
   - pytables>=3.4.2
   - pytest-cov
   - pytest-xdist
-  - s3fs
-  - scipy>=0.18.1
+  - scipy>=1.1
   - seaborn
   - sqlalchemy
   - statsmodels
diff --git a/requirements-dev.txt b/requirements-dev.txt
index d01a21ac5fed5..d24baf3c73356 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,23 +1,21 @@
-NumPy
+numpy>=1.15
 python-dateutil>=2.5.0
 pytz
-Cython>=0.28.2
+cython>=0.28.2
 flake8
 flake8-comprehensions
 flake8-rst==0.4.2
 gitpython
-hypothesis>=3.58.0
+hypothesis>=3.82
 isort
 moto
-pytest>=3.6
-setuptools>=24.2.0
+pytest>=4.0
 sphinx
 sphinxcontrib-spelling
 beautifulsoup4>=4.2.1
 blosc
 bottleneck>=1.2.0
 fastparquet>=0.1.2
-gcsfs
 html5lib
 ipython>=5.6.0
 ipykernel
@@ -25,15 +23,13 @@ jinja2
 lxml
 matplotlib>=2.0.0
 nbsphinx
-numexpr>=2.6.1
+numexpr>=2.6.8
 openpyxl
 pyarrow>=0.7.0
-pymysql
 tables>=3.4.2
 pytest-cov
 pytest-xdist
-s3fs
-scipy>=0.18.1
+scipy>=1.1
 seaborn
 sqlalchemy
 statsmodels