diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aabb47991..32b1c7ab6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -71,4 +71,4 @@ jobs:
           deploy-message: "Preview Deploy from GitHub Actions"
         env:
           NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
-          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
\ No newline at end of file
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
diff --git a/environment.yml b/environment.yml
index 924640a8b..20b5dae6a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ dependencies:
   - anaconda=2020.11
   - pip
   - pip:
-    - jupyter-book==0.10.2
+    - jupyter-book==0.11.1
     - sphinx-multitoc-numbering==0.1.3
     - quantecon-book-theme==0.2.3
     - sphinx-tojupyter==0.1.1
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index f597f8bf7..9450e6d4b 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -1,96 +1,94 @@
-- file: intro
+format: jb-book
+root: intro
+parts:
+- caption: Tools and Techniques
   numbered: true
-
-- part: Tools and Techniques
   chapters:
-    - file: geom_series
-    - file: multi_hyper
-    - file: sir_model
-    - file: linear_algebra
-    - file: complex_and_trig
-    - file: lln_clt
-    - file: heavy_tails
-    - file: multivariate_normal
-    - file: time_series_with_matrices
-
-- part: Introduction to Dynamics
+  - file: geom_series
+  - file: multi_hyper
+  - file: sir_model
+  - file: linear_algebra
+  - file: complex_and_trig
+  - file: lln_clt
+  - file: heavy_tails
+  - file: multivariate_normal
+  - file: time_series_with_matrices
+- caption: Introduction to Dynamics
+  numbered: true
   chapters:
-    - file: scalar_dynam
-    - file: ar1_processes
-    - file: finite_markov
-    - file: inventory_dynamics
-    - file: linear_models
-    - file: samuelson
-    - file: kesten_processes
-    - file: wealth_dynamics
-    - file: kalman
-    - file: short_path
-    - file: cass_koopmans_1
-    - file: cass_koopmans_2
-
-- part: Search
+  - file: scalar_dynam
+  - file: ar1_processes
+  - file: finite_markov
+  - file: inventory_dynamics
+  - file: linear_models
+  - file: samuelson
+  - file: kesten_processes
+  - file: wealth_dynamics
+  - file: kalman
+  - file: short_path
+  - file: cass_koopmans_1
+  - file: cass_koopmans_2
+- caption: Search
+  numbered: true
   chapters:
-    - file: mccall_model
-    - file: mccall_model_with_separation
-    - file: mccall_fitted_vfi
-    - file: mccall_correlated
-    - file: career
-    - file: jv
-
-- part: Consumption, Savings and Growth
+  - file: mccall_model
+  - file: mccall_model_with_separation
+  - file: mccall_fitted_vfi
+  - file: mccall_correlated
+  - file: career
+  - file: jv
+- caption: Consumption, Savings and Growth
+  numbered: true
   chapters:
-    - file: cake_eating_problem
-    - file: cake_eating_numerical
-    - file: optgrowth
-    - file: optgrowth_fast
-    - file: coleman_policy_iter
-    - file: egm_policy_iter
-    - file: ifp
-    - file: ifp_advanced
-
-- part: Information
+  - file: cake_eating_problem
+  - file: cake_eating_numerical
+  - file: optgrowth
+  - file: optgrowth_fast
+  - file: coleman_policy_iter
+  - file: egm_policy_iter
+  - file: ifp
+  - file: ifp_advanced
+- caption: Information
+  numbered: true
   chapters:
-    - file: odu
-    - file: likelihood_ratio_process
-    - file: wald_friedman
-    - file: exchangeable
-    - file: likelihood_bayes
-    - file: navy_captain
-
-- part: LQ Control
+  - file: odu
+  - file: likelihood_ratio_process
+  - file: wald_friedman
+  - file: exchangeable
+  - file: likelihood_bayes
+  - file: navy_captain
+- caption: LQ Control
+  numbered: true
   chapters:
-    - file: lqcontrol
-    - file: perm_income
-    - file: perm_income_cons
-    - file: lq_inventories
-
-- part: Multiple Agent Models
+  - file: lqcontrol
+  - file: perm_income
+  - file: perm_income_cons
+  - file: lq_inventories
+- caption: Multiple Agent Models
+  numbered: true
   chapters:
-    - file: schelling
-    - file: lake_model
-    - file: rational_expectations
-    - file: re_with_feedback
-    - file: markov_perf
-    - file: uncertainty_traps
-    - file: aiyagari
-
-- part: Asset Pricing and Finance
+  - file: schelling
+  - file: lake_model
+  - file: rational_expectations
+  - file: re_with_feedback
+  - file: markov_perf
+  - file: uncertainty_traps
+  - file: aiyagari
+- caption: Asset Pricing and Finance
+  numbered: true
   chapters:
-    - file: markov_asset
-    - file: ge_arrow
-    - file: harrison_kreps
-
-- part: Data and Empirics
+  - file: markov_asset
+  - file: ge_arrow
+  - file: harrison_kreps
+- caption: Data and Empirics
+  numbered: true
   chapters:
-    - file: pandas_panel
-    - file: ols
-    - file: mle
-
-
-# Placeholder for other pages
-
-- part: Other
+  - file: pandas_panel
+  - file: ols
+  - file: mle
+- caption: Other
+  numbered: true
   chapters:
-    - file: troubleshooting
-    - file: zreferences
-    - file: status
\ No newline at end of file
+  - file: troubleshooting
+  - file: zreferences
+  - file: status
\ No newline at end of file