diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 9a2063f5..6f788043 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -11,11 +11,10 @@ build:
   tools:
     python: "miniconda3-4.7"
   jobs:
-    pre_install:
-      - pip install --upgrade pip ipython ipykernel
-      - ipython kernel install --name "python3" --user
     post_checkout:
       - conda activate rtd_env
+      - pip install --upgrade pip ipython ipykernel
+      - ipython kernel install --name "python3" --user
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
diff --git a/doc_build/rtd_env.yml b/doc_build/rtd_env.yml
index f214087e..10483143 100644
--- a/doc_build/rtd_env.yml
+++ b/doc_build/rtd_env.yml
@@ -2,6 +2,7 @@ name: rtd_env
 channels:
   - conda-forge
   - defaults
+  - ipykernel
 dependencies:
   - python=3.11
   - pip: