diff --git a/environment.yml b/environment.yml
index e770689..467899e 100644
--- a/environment.yml
+++ b/environment.yml
@@ -5,6 +5,6 @@ dependencies:
   - python>=3.10
   - pip
   - conda-ecosystem-user-package-isolation
-  - fenics-dolfinx
+  - fenics-dolfinx=0.6.0
   - pip:
     - -e .[tests,docs]