diff --git a/docs/environment.yaml b/docs/environment.yaml
index 2bb2469..274cf8d 100644
--- a/docs/environment.yaml
+++ b/docs/environment.yaml
@@ -21,5 +21,6 @@ dependencies:
   - sphinx-copybutton=0.5.2 # for copy button in code blocks # https://anaconda.org/conda-forge/sphinx-copybutton/files
   # build process
   - sphinx-autobuild=2024.4.16 # live-html support # https://anaconda.org/conda-forge/sphinx-autobuild/files
+  - pip
   - pip:
-    - sphinx-carousel=1.2.0 # for carousel support # https://pypi.org/project/sphinx-carousel/
+    - sphinx-carousel==1.2.0 # for carousel support # https://pypi.org/project/sphinx-carousel/