diff --git a/Dockerfile b/Dockerfile
index 3eab2aa..8acfb10 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nvidia/cuda:11.2.0-devel-ubuntu20.04
+FROM nvidia/cuda:11.2.2-devel-ubuntu20.04
 
 ARG python=3.9
 ENV PYTORCH_VERSION=1.8.1+cu111
diff --git a/docs/requirements-doc.txt b/docs/requirements-doc.txt
index d3a9386..dd4a5db 100644
--- a/docs/requirements-doc.txt
+++ b/docs/requirements-doc.txt
@@ -4,4 +4,4 @@ mistune==0.8.4
 m2r2==0.3.2
 rinohtype==0.5.4
 solar-theme==1.3.3
-Sphinx==4.2.0
+Sphinx==5.0