diff --git a/docs/conf.py b/docs/conf.py
index a78c4e4..f44e3fe 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -33,6 +33,7 @@
     "sphinx_rtd_theme",
     "nbsphinx",
     "sphinx_design",
+    "sphinx_copybutton",
 ]
 exclude_patterns = ["**.ipynb_checkpoints"]
 
diff --git a/requirements_dev.txt b/requirements_dev.txt
index e510553..53504df 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -45,6 +45,7 @@ sphinx-rtd-theme==2.0.0
 nbsphinx
 sphinx-book-theme
 sphinx-design
+sphinx-copybutton
 #for testing
 pytest
 # development