diff --git a/_config.yml b/_config.yml
index f84ff6a5..2a7cd26c 100644
--- a/_config.yml
+++ b/_config.yml
@@ -3,7 +3,7 @@
 
 title: IPCC-ATLAS Jupyter Book
 author: David Domínguez Román, Antonio S. Cofiño and SantanderMetGroup
-copyright: 2024 
+copyright: "2024" 
 logo: logo.png
 # Auto-exclude files not in the toc
 only_build_toc_files        : true
@@ -50,6 +50,5 @@ html:
       repo: "SantanderMetGroup/ATLAS"
       issue-term: "pathname"
       theme: "preferred-color-scheme"
-
-    #hypothesis: true
+    hypothesis: true
 
diff --git a/_jb-cache/global.db b/_jb-cache/global.db
index 65d6c2fd..c8d58b01 100644
Binary files a/_jb-cache/global.db and b/_jb-cache/global.db differ
diff --git a/binder/conda/environment.yml b/binder/conda/environment.yml
index 57a631c1..fc857a97 100644
--- a/binder/conda/environment.yml
+++ b/binder/conda/environment.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
   # explicit dependency on R and Python versions
   - r-base ==3.6.3
-  - python ==3.7.12
+  - python ==3.7
   # climate4R v2.5.4 dependencies
   - r-climate4r.udg ==0.2.3
   - r-loader.java ==1.1.1
@@ -47,6 +47,7 @@ dependencies:
   # required for jupyter books
   - jupyter-book
   - jupytext >=0.16
+  - docutils <0.18|>=0.20 # BUG with bib and HTML layout: https://github.com/mcmtroffaes/sphinxcontrib-bibtex/issues/322
   # R extra dependencies used by notebooks and/or scripts
   - r-devtools
   - r-gridextra