diff --git a/README.md b/README.md
index 9d883415dddae94cc150ee586eb76456272743ba..6c3136a61106a59bf380905e1dd0d9671758999f 100644
--- a/README.md
+++ b/README.md
@@ -60,8 +60,8 @@ University of California, San Diego
 
 ## Version
 
-1.8.1
+1.8.4
 
 ## Last Updated
 
-Wednesday, August 4th, 2021
+Thursday, August 12th, 2021
diff --git a/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-11.2 b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-11.2
index 94fc2680d76d4d9e5997a5dabaf887e33b7135ec..f99971ad26620f32156fbeab931db5883154d33c 100644
--- a/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-11.2
+++ b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-11.2
@@ -1,5 +1,5 @@
-Bootstrap: shub
-From: mkandes/naked-singularity:ubuntu-18.04
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04
 
 %labels
 
@@ -10,7 +10,7 @@ From: mkandes/naked-singularity:ubuntu-18.04
     AUTHOR_NAME Marty Kandes
     AUTHOR_EMAIL mkandes@sdsc.edu
 
-    LAST_UPDATED 20210427
+    LAST_UPDATED 20210804
 
 %setup
 
@@ -126,11 +126,6 @@ From: mkandes/naked-singularity:ubuntu-18.04
     apt-get -y libglu1-mesa
     apt-get -y libglu1-mesa-dev
 
-    # Set paths to CUDA binaries and libraries
-    export CUDA_HOME="/usr/local/cuda-${CUDA_VERSION}"
-    export PATH="${CUDA_HOME}/bin${PATH:+:${PATH}}"
-    export LD_LIBRARY_PATH="${CUDA_HOME}/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
-
     # Cleanup
     apt-get -y autoremove --purge
     apt-get -y clean