diff --git a/cmake/modules/FindOrFetchUmpire.cmake b/cmake/modules/FindOrFetchUmpire.cmake
deleted file mode 100644
index 6e77dcbb48..0000000000
--- a/cmake/modules/FindOrFetchUmpire.cmake
+++ /dev/null
@@ -1,43 +0,0 @@
-# try find_package
-if (NOT TARGET umpire)
-  include (FindPackageRegimport)
-  find_package_regimport(umpire QUIET CONFIG)
-  if (TARGET umpire)
-    message(STATUS "Found umpire CONFIG at ${umpire_CONFIG}")
-  endif (TARGET umpire)
-endif (NOT TARGET umpire)
-
-# if not found, build via FetchContent
-if (NOT TARGET umpire)
-
-  # caveat: on recent Ubuntu default libstdc++ provides filesystem, but if using older gcc (gcc-8) must link against
-  # libstdc++fs: https://bugs.launchpad.net/ubuntu/+source/gcc-8/+bug/1824721 ... skip the use of std::filesystem altogether with pre-9 gcc!!!
-  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9)
-    # disable by populating cache with compile test result variable
-    set(UMPIRE_ENABLE_FILESYSTEM OFF CACHE BOOL "Whether Umpire to use std::filesystem")
-  endif()
-
-  include(FetchContent)
-  FetchContent_Declare(
-      umpire
-      GIT_REPOSITORY      https://github.com/LLNL/Umpire.git
-      GIT_TAG             ${TA_TRACKED_UMPIRE_TAG}
-  )
-  FetchContent_MakeAvailable(umpire)
-  FetchContent_GetProperties(umpire
-      SOURCE_DIR UMPIRE_SOURCE_DIR
-      BINARY_DIR UMPIRE_BINARY_DIR
-      )
-
-  # set BTAS_CONFIG to the install location so that we know where to find it
-  set(umpire_CONFIG ${CMAKE_INSTALL_PREFIX}/${UMPIRE_CMAKE_DIR}/umpire-config.cmake)
-
-  # install umpire
-  install(TARGETS umpire umpire_alloc EXPORT tiledarray COMPONENT tiledarray )
-
-endif(NOT TARGET umpire)
-
-# postcond check
-if (NOT TARGET umpire)
-  message(FATAL_ERROR "FindOrFetchUmpire could not make umpire target available")
-endif(NOT TARGET umpire)
diff --git a/external/librett.cmake b/external/librett.cmake
index 456bd99068..496c9ddd97 100644
--- a/external/librett.cmake
+++ b/external/librett.cmake
@@ -24,7 +24,6 @@ else()
 
     # set source and build path for LibreTT in the TiledArray project
     set(EXTERNAL_SOURCE_DIR   ${FETCHCONTENT_BASE_DIR}/librett-src)
-    # librett only supports in source build
     set(EXTERNAL_BUILD_DIR  ${FETCHCONTENT_BASE_DIR}/librett-build)
     set(EXTERNAL_INSTALL_DIR ${CMAKE_INSTALL_PREFIX})
 
@@ -176,7 +175,9 @@ set_target_properties(TiledArray_LIBRETT
         INTERFACE_INCLUDE_DIRECTORIES
         "$<BUILD_INTERFACE:${EXTERNAL_SOURCE_DIR}/src>;$<INSTALL_INTERFACE:${_LIBRETT_INSTALL_DIR}/include>"
         INTERFACE_LINK_LIBRARIES
-        "$<BUILD_INTERFACE:${LIBRETT_BUILD_BYPRODUCTS}>;$<INSTALL_INTERFACE:${_LIBRETT_INSTALL_DIR}/lib/librett.${LIBRETT_DEFAULT_LIBRARY_SUFFIX}>"
+        "$<BUILD_INTERFACE:${LIBRETT_BUILD_BYPRODUCTS}>;$<INSTALL_INTERFACE:${_LIBRETT_INSTALL_DIR}/lib/librett${LIBRETT_DEFAULT_LIBRARY_SUFFIX}>"
+        INTERFACE_LINK_OPTIONS
+        "LINKER:-rpath,${EXTERNAL_BUILD_DIR}/src"
         )
 if (TA_CUDA)
     set_target_properties(TiledArray_LIBRETT
diff --git a/external/versions.cmake b/external/versions.cmake
index aa0ff63a4b..aa0894f9cd 100644
--- a/external/versions.cmake
+++ b/external/versions.cmake
@@ -23,8 +23,8 @@ set(TA_TRACKED_BTAS_PREVIOUS_TAG 1cfcb12647c768ccd83b098c64cda723e1275e49)
 set(TA_TRACKED_LIBRETT_TAG 6eed30d4dd2a5aa58840fe895dcffd80be7fbece)
 set(TA_TRACKED_LIBRETT_PREVIOUS_TAG 354e0ccee54aeb2f191c3ce2c617ebf437e49d83)
 
-set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_TAG a48ad360e20b9733263768b54aa24afe5894faa4)
-set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_PREVIOUS_TAG 583ec579917103cbfee3ba5b67bab1582711b06e)
+set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_TAG cbb08408b1cfbbacc24992e36f52edb3a29bdedc)
+set(TA_TRACKED_UMPIRE-CXX-ALLOCATOR_PREVIOUS_TAG a48ad360e20b9733263768b54aa24afe5894faa4)
 
 set(TA_TRACKED_SCALAPACKPP_TAG 6397f52cf11c0dfd82a79698ee198a2fce515d81)
 set(TA_TRACKED_SCALAPACKPP_PREVIOUS_TAG 711ef363479a90c88788036f9c6c8adb70736cbf )