diff --git a/MANIFEST.in b/MANIFEST.in
index e13d8ac43d3c5c5ff131149c711b5a26567d6ebd..ca50ea340f7f443d230f1f473a34331525fdbef1 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,6 +4,7 @@ include HISTORY.rst
 include LICENSE
 include README.rst
 include requirements_dev.txt
+include requirements_continuous_integration.txt
 
 
 
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6f8589b52167a0988a8c5531779c595997fc8beb..146631ced56d34341354f22df19e89760ce54788 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ twine==1.12.1
 pytest==3.8.2
 pytest-runner==4.2
 pytest-xvfb==1.2.0
-numpy==1.16.2
+numpy==1.16.4
 recordtype==1.3
 xarray==0.11.3
 matplotlib==3.0.2