diff --git a/documentation/rtfd-requirements.txt b/documentation/rtfd-requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ccd465128884184d5401daf45f8538b05248b7dd
--- /dev/null
+++ b/documentation/rtfd-requirements.txt
@@ -0,0 +1,5 @@
+sphinx_rtd_theme = 0.5.1
+sphinx == 3.5.3
+breathe == 4.27.0
+recommonmark = 0.7.1
+