diff --git a/CMakeLists.txt b/CMakeLists.txt
index af78061..5be633c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.5)
 
 project(ade)
 
@@ -39,13 +39,18 @@ function(add_security_flags target)
             target_compile_options( ${target} PRIVATE -fstack-protector-strong)
         endif()
     elseif(WIN32)
-        target_compile_options( ${target} PRIVATE /GS /DynamicBase)
-        if(BUILD_WITH_STATIC_CRT)
-            target_compile_options( ${target} PRIVATE "/MT")
-        endif()
-        if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "4")
-            # These options for 32 bit builds only
-            target_compile_options( ${target} PRIVATE /SAFESEH /NXCOMPAT )
+        if( ${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
+            target_compile_options( ${target} PRIVATE /GS /DynamicBase)
+            if(BUILD_WITH_STATIC_CRT)
+                target_compile_options( ${target} PRIVATE "/MT")
+            endif()
+            if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "4")
+                # These options for 32 bit builds only
+                target_compile_options( ${target} PRIVATE /SAFESEH /NXCOMPAT )
+            endif()
+        elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+            target_compile_definitions( ${target} PRIVATE _FORTIFY_SOURCE=2 )
+            target_compile_options( ${target} PRIVATE -fstack-protector-strong )
         endif()
     endif()
 endfunction()
diff --git a/README.md b/README.md
index 0737dd6..47b7168 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ processing and execution.
 
 ## Prerequisites and building
 
-The only prerequisites for library are CMake 3.2+ and a C++11
+The only prerequisites for library are CMake 3.5+ and a C++11
 compiler.
 
 Building:
diff --git a/sources/tests/CMakeLists.txt b/sources/tests/CMakeLists.txt
index 3bd5fe6..437f9f3 100644
--- a/sources/tests/CMakeLists.txt
+++ b/sources/tests/CMakeLists.txt
@@ -19,17 +19,26 @@ else()
         CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_PREFIX:PATH=${GTEST_INSTALL_DIR} -Dgtest_force_shared_crt=ON
         LOG_DOWNLOAD ON
         LOG_CONFIGURE ON
-        LOG_BUILD ON)
+        LOG_BUILD ON
+      )
 
     set(GTEST_LIBRARIES_PATH ${GTEST_INSTALL_DIR}/lib/)
 
-    set(GTEST_LIBRARY_PATH ${GTEST_LIBRARIES_PATH}/${CMAKE_FIND_LIBRARY_PREFIXES}gtest${CMAKE_STATIC_LIBRARY_SUFFIX})
+    set(GTEST_LIB_PREFIX ${CMAKE_FIND_LIBRARY_PREFIXES})
+    if( WIN32 AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+      # Somehow in this case we get GTest compiled as gtest.lib and
+      # prefix equals to "pub;"
+      # Workarounds, workarounds...
+      set(GTEST_LIB_PREFIX "")
+    endif()
+
+    set(GTEST_LIBRARY_PATH ${GTEST_LIBRARIES_PATH}/${GTEST_LIB_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX})
     set(GTEST_LIBRARY gtest)
     add_library(${GTEST_LIBRARY} UNKNOWN IMPORTED)
     set_property(TARGET ${GTEST_LIBRARY} PROPERTY IMPORTED_LOCATION ${GTEST_LIBRARY_PATH})
     add_dependencies(${GTEST_LIBRARY} GTest)
 
-    set(GTEST_MAIN_LIBRARY_PATH ${GTEST_LIBRARIES_PATH}/${CMAKE_FIND_LIBRARY_PREFIXES}gtest_main${CMAKE_STATIC_LIBRARY_SUFFIX})
+    set(GTEST_MAIN_LIBRARY_PATH ${GTEST_LIBRARIES_PATH}/${GTEST_LIB_PREFIX}gtest_main${CMAKE_STATIC_LIBRARY_SUFFIX})
     set(GTEST_MAIN_LIBRARY gtest-main)
     add_library(${GTEST_MAIN_LIBRARY} UNKNOWN IMPORTED)
     set_property(TARGET ${GTEST_MAIN_LIBRARY} PROPERTY IMPORTED_LOCATION ${GTEST_MAIN_LIBRARY_PATH})