diff --git a/docker.Makefile b/docker.Makefile
index 5c77711b68c..724a0a28acc 100644
--- a/docker.Makefile
+++ b/docker.Makefile
@@ -10,8 +10,8 @@ endif
 
 CUDA_VERSION              = 11.7.0
 CUDNN_VERSION             = 8
-BASE_RUNTIME              = ubuntu:18.04
-BASE_DEVEL                = nvidia/cuda:$(CUDA_VERSION)-cudnn$(CUDNN_VERSION)-devel-ubuntu18.04
+BASE_RUNTIME              = ubuntu:20.04
+BASE_DEVEL                = nvidia/cuda:$(CUDA_VERSION)-cudnn$(CUDNN_VERSION)-devel-ubuntu20.04
 CMAKE_VARS               ?=
 
 # The conda channel to use to install cudatoolkit