diff --git a/ci/environment.yaml b/ci/environment.yaml
index b002ee0..3613c6e 100644
--- a/ci/environment.yaml
+++ b/ci/environment.yaml
@@ -2,11 +2,10 @@ name: griddata_env
 channels:
   - conda-forge
 dependencies:
-  - pip
   - numpy>=1.21
   - scipy
   - mrcfile
-  - sphinx<7.0
-  - pip:
-    - sphinx-sitemap
-    - sphinx-rtd-theme
+
+  # documentation
+  - mdanalysis-sphinx-theme >=1.0.1
+ 
\ No newline at end of file
diff --git a/environment.yaml b/environment.yaml
deleted file mode 100644
index dd5861d..0000000
--- a/environment.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: griddataformats-docs
-channels:
-  - conda-forge
-
-dependencies:
-  - python
-  - pip
-  # base deps
-  - numpy
-  - scipy
-  - mrcfile
-
-  - mdanalysis-sphinx-theme >=1.0.1