diff --git a/requirements/docs-lint.txt b/requirements/docs-lint.txt
index de55d534c7e..91b9e4afbd6 100644
--- a/requirements/docs-lint.txt
+++ b/requirements/docs-lint.txt
@@ -1,2 +1,4 @@
-Sphinx
-rstcheck
+# Sphinx 1.8 is incompatible with
+# the latest version of rstcheck
+Sphinx<1.8
+rstcheck==3.3