diff --git a/docs/requirements.txt b/docs/requirements.txt
index 5761bdfd9c7e..7c904ecdc4b0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -14,5 +14,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-sphinx==1.8.1
+sphinx==3.0.4
 sphinx-rtd-theme==0.3.1