diff --git a/docs/source/environment.yaml b/docs/source/environment.yaml
index e5d187041..6f2800bc7 100644
--- a/docs/source/environment.yaml
+++ b/docs/source/environment.yaml
@@ -1,13 +1,12 @@
 name: fenics
 channels:
   - conda-forge
-  - defaults
 dependencies:
-  - fenics
+  - fenics-dolfinx==0.9.0
   - pip>=20.1
   - matplotlib==3.7.1
+  - scifem
   - pip:
-    - sympy
-    - sphinx_book_theme==1.0.1
-    - sphinx==6.2.1
-    - sphinx-design==0.4.1
\ No newline at end of file
+      - sphinx_book_theme==1.0.1
+      - sphinx==6.2.1
+      - sphinx-design==0.4.1