diff --git a/environment.yml b/environment.yml
index 5f05f8be9..49ab356f0 100644
--- a/environment.yml
+++ b/environment.yml
@@ -19,6 +19,8 @@ dependencies:
     - array-to-latex
     - prettytable
     - graphviz
+    - wbgapi
+    - imfpy
     # Sandpit Requirements
     # - PuLP
     # - cvxpy
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index 8feeadd5f..def7c152e 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -6,6 +6,7 @@ parts:
   chapters:
   - file: about
   - file: long_run_growth
+  - file: business_cycle
   - file: inequality
 - caption: Tools & Techniques
   numbered: true
diff --git a/in-work/ business_cycle.md b/lectures/business_cycle.md
similarity index 100%
rename from in-work/ business_cycle.md
rename to lectures/business_cycle.md