diff --git a/CMakeLists.txt b/CMakeLists.txt
index 556b094..7af4603 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,6 @@ endif()
 set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)
 
 include(GNUInstallDirs)
-include(UseLibCXX)
 
 find_package(nlohmann_json "3.6.1" REQUIRED)
 find_package(fmt "8.1.1"
diff --git a/irods_consortium_continuous_integration_build_hook.py b/irods_consortium_continuous_integration_build_hook.py
index 6b64414..5f38a7b 100644
--- a/irods_consortium_continuous_integration_build_hook.py
+++ b/irods_consortium_continuous_integration_build_hook.py
@@ -14,12 +14,11 @@ def add_cmake_to_front_of_path():
 
 def install_building_dependencies(externals_directory):
     externals_list = [
-        'irods-externals-avro1.11.0-2',
-        'irods-externals-boost1.81.0-0',
-        'irods-externals-clang-runtime13.0.0-0',
-        'irods-externals-clang13.0.0-0',
+        'irods-externals-avro1.11.0-3',
+        'irods-externals-boost1.81.0-1',
+        'irods-externals-clang13.0.1-0',
         'irods-externals-cmake3.21.4-0',
-        'irods-externals-fmt8.1.1-0',
+        'irods-externals-fmt8.1.1-1',
         'irods-externals-json3.10.4-0',
         'irods-externals-libarchive3.5.2-0'
     ]