diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1c3a7bffd..f2f6a48ce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,13 +20,13 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
-      - name: Download "build" folder (cache)
-        uses: dawidd6/action-download-artifact@v8
-        with:
-          workflow: cache.yml
-          branch: main
-          name: build-cache
-          path: _build
+      # - name: Download "build" folder (cache)
+      #   uses: dawidd6/action-download-artifact@v8
+      #   with:
+      #     workflow: cache.yml
+      #     branch: main
+      #     name: build-cache
+      #     path: _build
       # Build Assets (Download Notebooks and PDF via LaTeX)
       - name: Build Download Notebooks (sphinx-tojupyter)
         shell: bash -l {0}
diff --git a/lectures/kesten_processes.md b/lectures/kesten_processes.md
index 3c185cccd..95a6afd30 100644
--- a/lectures/kesten_processes.md
+++ b/lectures/kesten_processes.md
@@ -108,7 +108,7 @@ Composite Index for the period 1st January 2006 to 1st November 2019.
 ```{code-cell} python3
 import yfinance as yf
 
-s = yf.download('^IXIC', '2006-1-1', '2019-11-1')['Adj Close']
+s = yf.download('^IXIC', '2006-1-1', '2019-11-1', auto_adjust=False)['Adj Close']
 
 r = s.pct_change()