diff --git a/environment.yml b/environment.yml
index e5187261cadc3b4b63e5cda42a367b3a0aaf7070..cd17377ac8d269d8e62ae473c28f11942c3ae834 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,4 +7,7 @@ dependencies:
   - numpy
   - scipy
   - gdal
-  - matplotlib
\ No newline at end of file
+  - matplotlib
+  - sphinx
+  - sphinx_rtd_theme
+  - pytest
\ No newline at end of file