--- /dev/null
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 4663a65..b91077a 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -95,19 +95,25 @@ message("## ${OATPP_THIS_MODULE_NAME} module. Resolving dependencies...\n")
+ ##############################
+ ## Find Libressl dependency
+
+-include(FindPkgConfig)
+-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/module")
+-
+-find_package(LibreSSL 3.0.0 REQUIRED)
+-
+-message("LIBRESSL_INCLUDE_DIR=${LIBRESSL_INCLUDE_DIR}")
+-message("LIBRESSL_TLS_LIBRARY=${LIBRESSL_TLS_LIBRARY}")
+-message("LIBRESSL_SSL_LIBRARY=${LIBRESSL_SSL_LIBRARY}")
+-message("LIBRESSL_CRYPTO_LIBRARY=${LIBRESSL_CRYPTO_LIBRARY}")
+-message("LIBRESSL_LIBRARIES=${LIBRESSL_LIBRARIES}")
+-message("LIBRESSL_VERSION=${LIBRESSL_VERSION}")
+-
+-message("\n############################################################################\n")
++find_file(LIBRESSL_INCLUDE_DIR tls.h)
++if (NOT LIBRESSL_INCLUDE_DIR)
++ find_file(_OPENSSL_SSL_INCLUDE_FILE openssl/ssl.h)
++ if (NOT _OPENSSL_SSL_INCLUDE_FILE)
++ message(FATAL_ERROR "LibreSSL and OpenSSL not found. LibreSSL must be installed.")
++ else()
++ message(FATAL_ERROR "OpenSSL installed instead of LibreSSL. oatpp-libressl requires LibreSSL.")
++ endif()
++endif()
++get_filename_component(LIBRESSL_INCLUDE_DIR ${LIBRESSL_INCLUDE_DIR} DIRECTORY)
++find_library(LIBRESSL_TLS_LIBRARY NAMES tls tls-21 tls-20 tls-19)
++find_library(LIBRESSL_SSL_LIBRARY NAMES ssl ssl-49 ssl-48 ssl-47)
++find_library(LIBRESSL_CRYPTO_LIBRARY NAMES crypto crypto-47 crypto-46 crypto-45)
++find_library(LIBRESSL_LIBRARIES "${LIBRESSL_CRYPTO_LIBRARY};${LIBRESSL_SSL_LIBRARY};${LIBRESSL_TLS_LIBRARY}")
++message(STATUS "LIBRESSL_INCLUDE_DIR=${LIBRESSL_INCLUDE_DIR}")
++message(STATUS "LIBRESSL_TLS_LIBRARY=${LIBRESSL_TLS_LIBRARY}")
++message(STATUS "LIBRESSL_SSL_LIBRARY=${LIBRESSL_SSL_LIBRARY}")
++message(STATUS "LIBRESSL_CRYPTO_LIBRARY=${LIBRESSL_CRYPTO_LIBRARY}")
++message(STATUS "LIBRESSL_LIBRARIES=${LIBRESSL_LIBRARIES}")
+
+ ###################################################################################################
+ ## define targets
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index ace3b13..489fbb1 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -30,10 +30,12 @@ target_include_directories(${OATPP_THIS_MODULE_NAME}
+ PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+ )
+
++target_include_directories(${OATPP_THIS_MODULE_NAME}
++ SYSTEM PRIVATE "${LIBRESSL_INCLUDE_DIR}"
++)
++
+ target_link_libraries(${OATPP_THIS_MODULE_NAME}
+- PUBLIC LibreSSL::TLS
+- PUBLIC LibreSSL::SSL
+- PUBLIC LibreSSL::Crypto
++ PUBLIC "${LIBRESSL_TLS_LIBRARY}" "${LIBRESSL_SSL_LIBRARY}" "${LIBRESSL_CRYPTO_LIBRARY}"
+ )
+
+ #######################################################################################################