diff --git a/.uberenv_config.json b/.uberenv_config.json
index 7072046f6..ed828ce7f 100644
--- a/.uberenv_config.json
+++ b/.uberenv_config.json
@@ -4,7 +4,7 @@
 "package_final_phase" : "initconfig",
 "package_source_dir" : "../..",
 "spack_url": "https://github.com/spack/spack.git",
-"spack_branch": "v1.0.2",
+"spack_branch": "v1.1.0",
 "spack_configs_path": "scripts/radiuss-spack-configs",
 "spack_packages_path": "scripts/radiuss-spack-configs/spack_repo/llnl_radiuss/packages",
 "spack_setup_clingo": false
diff --git a/scripts/radiuss-spack-configs b/scripts/radiuss-spack-configs
index fddc4f16e..3a1d42999 160000
--- a/scripts/radiuss-spack-configs
+++ b/scripts/radiuss-spack-configs
@@ -1 +1 @@
-Subproject commit fddc4f16ee987abc9c1c61879eaf8a2d6a8253d9
+Subproject commit 3a1d4299973d066b1cfff4bce0c14e01f0cf20d1