diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7aa5b49..7e0f7b2 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,10 +1,13 @@
 # docs/requirements.txt
+jinja2<3.1
 sphinx==3.4.1
 sphinx_rtd_theme==0.5.0
 nbsphinx>=0.8.6
 sphinx-copybutton==0.3.1
 toml==0.10.2
 ipykernel
-jinja2<3.1
-numpy
-matplotlib
+numba==0.51.0
+celerite==0.4.0
+scipy==1.5.0
+emcee==3.0.0
+matplotlib==3.3.3