--- a/runtime/Cpp/runtime/CMakeLists.txt
+++ b/runtime/Cpp/runtime/CMakeLists.txt
@@ -1,19 +1,6 @@
 
 include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
 
-set(THIRDPARTY_DIR ${CMAKE_BINARY_DIR}/runtime/thirdparty)
-set(UTFCPP_DIR ${THIRDPARTY_DIR}/utfcpp)
-ExternalProject_Add(
-  utfcpp
-  GIT_REPOSITORY        "git://github.com/nemtrif/utfcpp"
-  GIT_TAG               "v3.1.1"
-  SOURCE_DIR            ${UTFCPP_DIR}
-  UPDATE_DISCONNECTED   1
-  CMAKE_ARGS            -DCMAKE_INSTALL_PREFIX=${UTFCPP_DIR}/install -Dgtest_force_shared_crt=ON
-  TEST_AFTER_INSTALL    1
-  STEP_TARGETS          build)
-
-
 include_directories(
   ${PROJECT_SOURCE_DIR}/runtime/src
   ${PROJECT_SOURCE_DIR}/runtime/src/atn
@@ -23,8 +10,6 @@ include_directories(
   ${PROJECT_SOURCE_DIR}/runtime/src/tree
   ${PROJECT_SOURCE_DIR}/runtime/src/tree/pattern
   ${PROJECT_SOURCE_DIR}/runtime/src/tree/xpath
-  ${UTFCPP_DIR}/install/include/utf8cpp
-  ${UTFCPP_DIR}/install/include/utf8cpp/utf8
 )
 
 
@@ -50,9 +35,6 @@ add_custom_target(make_lib_output_dir AL
     COMMAND ${CMAKE_COMMAND} -E make_directory ${LIB_OUTPUT_DIR}
     )
 
-add_dependencies(antlr4_shared make_lib_output_dir utfcpp)
-add_dependencies(antlr4_static make_lib_output_dir utfcpp)
-
 if(CMAKE_SYSTEM_NAME MATCHES "Linux")
   target_link_libraries(antlr4_shared ${UUID_LIBRARIES})
   target_link_libraries(antlr4_static ${UUID_LIBRARIES})
@@ -131,13 +113,3 @@ install(DIRECTORY "${PROJECT_SOURCE_DIR}
         FILES_MATCHING PATTERN "*.h"
         )
 
-install(FILES "${UTFCPP_DIR}/source/utf8.h"
-        DESTINATION "include/antlr4-runtime")
-install(DIRECTORY "${UTFCPP_DIR}/source/utf8"
-        DESTINATION "include/antlr4-runtime"
-        COMPONENT dev
-        FILES_MATCHING PATTERN "*.h"
-        )
-
-
-