diff --git a/requirements/doc.txt b/requirements/doc.txt
index 32b791d5761..d2b09ea6b04 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -1,4 +1,6 @@
 aiohttp-theme==0.1.6
+# Temp fix till updated: https://github.com/blockdiag/blockdiag/pull/148
+funcparserlib==1.0.0a0
 pygments==2.10.0
 sphinx==4.1.2
 sphinxcontrib-asyncio==0.3.0