diff --git a/README.md b/README.md
index f62b6f6..910fe7d 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,7 @@ in the project's root directory.
 If you want to contribute to the documentation, run
 
     pip install -r requirements-doc.txt
+    conda install pandoc
 
 to install the necessary packages for building the sphinx documentation.
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index d17877f..b89dc7b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -10,4 +10,4 @@ flake8
 pep8-naming
 flake8-docstrings
 pre-commit
-
+isort
\ No newline at end of file
diff --git a/requirements-doc.txt b/requirements-doc.txt
index 07c57e1..46abc71 100644
--- a/requirements-doc.txt
+++ b/requirements-doc.txt
@@ -1,6 +1,7 @@
 -r requirements.txt
 sphinx~=2.1.2 
 sphinx_rtd_theme~=0.4.3
-sphinxcontrib-bibtex
+sphinxcontrib-bibtex<2.0.0
 nbsphinx
-doc8
\ No newline at end of file
+doc8
+jinja2<3.1
\ No newline at end of file