diff --git a/contributors.txt b/contributors.txt
index cfb17f41d..fdc21aa6f 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -286,8 +286,10 @@ YYYY/MM/DD, github id, Full name, email
 2020/12/03, electrum, David Phillips, david@acz.org
 2021/01/25, l215884529, Qiheng Liu, 13607681+l215884529@users.noreply.github.com
 2021/02/02, tsotnikov, Taras Sotnikov, taras.sotnikov@gmail.com
+2021/02/10, jirislaby, Jiri Slaby, jirislaby@gmail.com
 2021/02/21, namasikanam, Xingyu Xie, namasikanam@gmail.com
 2021/02/27, khmarbaise, Karl Heinz Marbaise, github@soebes.com
 2021/03/02, hackeris
 2021/03/03, xTachyon, Damian Andrei, xTachyon@users.noreply.github.com
 2021/04/08, bigerl, Alexander Bigerl, bigerl@mail.upb.de
+2021/04/07, b1f6c1c4, Jinzheng Tu, b1f6c1c4@gmail.com
\ No newline at end of file
diff --git a/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake b/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
index 4d037cf50..18adff3bb 100644
--- a/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
+++ b/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake
@@ -112,7 +112,7 @@ else()
       EXCLUDE_FROM_ALL 1)
 endif()
 
-# Seperate build step as rarely people want both
+# Separate build step as rarely people want both
 set(ANTLR4_BUILD_DIR ${ANTLR4_ROOT})
 if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14.0")
   # CMake 3.14 builds in above's SOURCE_SUBDIR when BUILD_IN_SOURCE is true
diff --git a/runtime/Cpp/runtime/CMakeLists.txt b/runtime/Cpp/runtime/CMakeLists.txt
index 7979e2a4e..78fbf7d25 100644
--- a/runtime/Cpp/runtime/CMakeLists.txt
+++ b/runtime/Cpp/runtime/CMakeLists.txt
@@ -1,4 +1,3 @@
-
 include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
 
 set(THIRDPARTY_DIR ${CMAKE_BINARY_DIR}/runtime/thirdparty)
@@ -12,7 +11,6 @@ ExternalProject_Add(
   CMAKE_ARGS            -DCMAKE_INSTALL_PREFIX=${UTFCPP_DIR}/install -DUTF8_TESTS=off -DUTF8_SAMPLES=off
   STEP_TARGETS          build)
 
-
 include_directories(
   ${PROJECT_SOURCE_DIR}/runtime/src
   ${PROJECT_SOURCE_DIR}/runtime/src/atn
@@ -22,8 +20,6 @@ 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
 )
 
 
@@ -49,8 +45,49 @@ add_custom_target(make_lib_output_dir ALL
     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)
+add_dependencies(antlr4_shared make_lib_output_dir)
+add_dependencies(antlr4_static make_lib_output_dir)
+
+find_package(utf8cpp QUIET)
+
+set(INSTALL_utf8cpp FALSE)
+
+if (utf8cpp_FOUND)
+  target_link_libraries(antlr4_shared utf8cpp)
+  target_link_libraries(antlr4_static utf8cpp)
+else()
+
+  # older utf8cpp doesn't define the package above
+  find_path(utf8cpp_HEADER utf8.h
+    PATH_SUFFIXES utf8cpp
+    )
+
+  if (utf8cpp_HEADER)
+    include_directories(${utf8cpp_HEADER})
+  else()
+    include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
+    set(THIRDPARTY_DIR ${CMAKE_BINARY_DIR}/runtime/thirdparty)
+    set(UTFCPP_DIR ${THIRDPARTY_DIR}/utfcpp)
+    ExternalProject_Add(
+      utf8cpp
+      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(
+      ${UTFCPP_DIR}/install/include/utf8cpp
+      ${UTFCPP_DIR}/install/include/utf8cpp/utf8
+      )
+
+    add_dependencies(antlr4_shared utf8cpp)
+    add_dependencies(antlr4_static utf8cpp)
+    set(INSTALL_utf8cpp TRUE)
+  endif()
+endif()
 
 if(CMAKE_SYSTEM_NAME MATCHES "Linux")
   target_link_libraries(antlr4_shared ${UUID_LIBRARIES})
@@ -130,13 +167,15 @@ install(DIRECTORY "${PROJECT_SOURCE_DIR}/runtime/src/"
         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"
-        )
+if (INSTALL_utf8cpp)
+  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"
+	  )
+endif()