diff --git a/.github/workflows/cache.yml b/.github/workflows/cache.yml
index f968aa655..f0ea3a006 100644
--- a/.github/workflows/cache.yml
+++ b/.github/workflows/cache.yml
@@ -2,6 +2,7 @@ name: Build Cache [using jupyter-book]
 on:
   push:
     branches:
+      - cache_test_1
       - main
 jobs:
   tests:
@@ -34,6 +35,11 @@ jobs:
             xindy                     \
             dvipng                    \
             cm-super
+      # Build Assets (Download Notebooks and PDF via LaTeX)
+      - name: Build PDF from LaTeX
+        shell: bash -l {0}
+        run: |
+          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
       - name: Build HTML
         shell: bash -l {0}
         run: |
diff --git a/environment.yml b/environment.yml
index f60099b5e..777c062a3 100644
--- a/environment.yml
+++ b/environment.yml
@@ -13,7 +13,7 @@ dependencies:
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-exercise==0.4.1
-    - sphinx-proof==0.2.0
+    - sphinx-proof==0.1.3
     - ghp-import==1.1.0
     - sphinxcontrib-youtube==1.1.0
     - sphinx-togglebutton==0.3.1
diff --git a/lectures/_config.yml b/lectures/_config.yml
index ecd808f0f..58fae3341 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -28,7 +28,7 @@ html:
   baseurl: https://intro.quantecon.org/
 
 bibtex_bibfiles:
-  - _static/quant-econ.bib
+  - quant-econ.bib
 
 latex:
   latex_documents:
@@ -45,7 +45,6 @@ sphinx:
       width: 80%
     nb_code_prompt_show: "Show {type}"
     suppress_warnings: [mystnb.unknown_mime_type, myst.domains]
-    proof_minimal_theme: true
     # -------------
     html_js_files:
       - https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js
diff --git a/lectures/_static/quant-econ.bib b/lectures/quant-econ.bib
similarity index 100%
rename from lectures/_static/quant-econ.bib
rename to lectures/quant-econ.bib
diff --git a/lectures/zreferences.md b/lectures/zreferences.md
index 5f17e8922..167f8d99b 100644
--- a/lectures/zreferences.md
+++ b/lectures/zreferences.md
@@ -12,6 +12,6 @@ kernelspec:
 (references)=
 # References
 
-```{bibliography} _static/quant-econ.bib
+```{bibliography} quant-econ.bib
 ```