diff --git a/README.md b/README.md
index a470a6b..dfd9635 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ Or you can install from source:
 ```bash
 git clone https://github.com/profjsb/deepCR.git
 cd deepCR/
-python setup.py install
+pip install .
 ```
 
 ### Quick Start
diff --git a/docs/index.rst b/docs/index.rst
index 1f3dada..204cf6f 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -36,7 +36,7 @@ Or you can install from source:
 
    git clone https://github.com/profjsb/deepCR.git
    cd deepCR/
-   python setup.py install
+   pip install .
 
 Currently available models
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/setup.cfg b/setup.cfg
index 1c31374..3c16ad3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,6 +39,7 @@ python_requires = >=3.5
 install_requires =
     astropy>=3.1.2
     numpy>=1.16.3
+    astroscrappy>=1.0.8
     tqdm
     scikit-image>=0.15.0
     scipy>=1.2.1