diff --git a/etc/example-environment.yml b/etc/example-environment.yml
index faf9c889..d798745e 100644
--- a/etc/example-environment.yml
+++ b/etc/example-environment.yml
@@ -3,5 +3,6 @@ channels:
   - conda-forge
   - defaults
 dependencies:
-  - black
   - anaconda-client
+  - pip:
+    - -r requirements.txt
diff --git a/etc/requirements.txt b/etc/requirements.txt
new file mode 100644
index 00000000..2a792435
--- /dev/null
+++ b/etc/requirements.txt
@@ -0,0 +1 @@
+isort