diff --git a/CMakeLists.txt b/CMakeLists.txt
index ecfd432..0f09d25 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 #-------------------------------------------------------------------------------
-# Copyright (c) 2021-2022, Arm Limited. All rights reserved.
+# Copyright (c) 2021-2023, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -7,6 +7,8 @@
 
 add_subdirectory(log)
 
+add_subdirectory(lib/ext)
+
 if(NS)
     add_subdirectory(app)
 endif()
diff --git a/lib/ext/CMakeLists.txt b/lib/ext/CMakeLists.txt
new file mode 100644
index 0000000..eb53c97
--- /dev/null
+++ b/lib/ext/CMakeLists.txt
@@ -0,0 +1,10 @@
+#-------------------------------------------------------------------------------
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-------------------------------------------------------------------------------
+
+if(CONFIG_TFM_ERPC_TEST_FRAMEWORK)
+    add_subdirectory(erpc)
+endif()
diff --git a/lib/ext/erpc/CMakeLists.txt b/lib/ext/erpc/CMakeLists.txt
new file mode 100644
index 0000000..66071f9
--- /dev/null
+++ b/lib/ext/erpc/CMakeLists.txt
@@ -0,0 +1,21 @@
+#-------------------------------------------------------------------------------
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-------------------------------------------------------------------------------
+
+set(ERPC_REPO_PATH   "DOWNLOAD"  CACHE PATH      "Path to eRPC repo (or DOWNLOAD to fetch automatically")
+set(ERPC_VERSION     "1.9.1"     CACHE STRING    "The version of eRPC to use")
+
+fetch_remote_library(
+    LIB_NAME                erpc
+    LIB_SOURCE_PATH_VAR     ERPC_REPO_PATH
+    LIB_BASE_DIR            "${CMAKE_BINARY_DIR}/lib/ext"
+    FETCH_CONTENT_ARGS
+        GIT_REPOSITORY      https://github.com/EmbeddedRPC/erpc.git
+        GIT_TAG             ${ERPC_VERSION}
+        GIT_SHALLOW         TRUE
+        GIT_PROGRESS        TRUE
+        GIT_SUBMODULES      ""
+)