pip install numpy>=1.19.4

Author: cclauss

.travis.yml

@@ -18,7 +18,7 @@ env:
   - PATH=$PATH:$HOME/.cargo/bin
 before_install:
   - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-  - pip install --upgrade pip setuptools six wheel
+  - pip install --upgrade pip setuptools six wheel numpy>=1.19.4
 jobs:
   include:
     - install: true