diff --git a/requirements.txt b/requirements.txt
index 724689adc..f54ce631f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Sphinx==1.8.5
+Sphinx==3.2.1
 sphinx-rtd-theme==0.5.0
 sphinx-autobuild==0.7.1
 transifex-client==0.13.11
\ No newline at end of file