diff --git a/opencv/opencv.patch b/opencv/opencv.patch
index ab250ef9c2..e0acdae5fa 100644
--- a/opencv/opencv.patch
+++ b/opencv/opencv.patch
@@ -1,10 +1,11 @@
 Index: cmake/OpenCVCompilerOptions.cmake
---- cmake/OpenCVCompilerOptions.cmake.orig	2018-11-17 11:22:17.000000000 +0100
-+++ cmake/OpenCVCompilerOptions.cmake	2018-11-17 20:45:46.262950000 +0100
-@@ -85,43 +85,12 @@
+--- cmake/OpenCVCompilerOptions.cmake.orig	2018-11-19 07:21:32.292476000 +0100
++++ cmake/OpenCVCompilerOptions.cmake	2018-11-19 07:22:48.095203000 +0100
+@@ -84,39 +84,6 @@
+ endif()
  
  if(CV_GCC OR CV_CLANG)
-   # High level of warnings.
+-  # High level of warnings.
 -  add_extra_compiler_option(-W)
 -  if (NOT MSVC)
 -    # clang-cl interprets -Wall as MSVC would: -Weverything, which is more than
@@ -23,7 +24,9 @@ Index: cmake/OpenCVCompilerOptions.cmake
 -  add_extra_compiler_option(-Wundef)
 -  add_extra_compiler_option(-Winit-self)
 -  add_extra_compiler_option(-Wpointer-arith)
--  add_extra_compiler_option(-Wshadow)
+-  if(NOT (CV_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0"))
+-    add_extra_compiler_option(-Wshadow)  # old GCC emits warnings for variables + methods combination
+-  endif()
 -  add_extra_compiler_option(-Wsign-promo)
 -  add_extra_compiler_option(-Wuninitialized)
 -  add_extra_compiler_option(-Winit-self)
@@ -38,16 +41,9 @@ Index: cmake/OpenCVCompilerOptions.cmake
    if(ENABLE_NOISY_WARNINGS)
      add_extra_compiler_option(-Wcast-align)
      add_extra_compiler_option(-Wstrict-aliasing=2)
-   else()
-     add_extra_compiler_option(-Wno-narrowing)
-     add_extra_compiler_option(-Wno-delete-non-virtual-dtor)
--    add_extra_compiler_option(-Wno-unnamed-type-template-args)
-     add_extra_compiler_option(-Wno-comment)
-     if(NOT OPENCV_SKIP_IMPLICIT_FALLTHROUGH
-         AND NOT " ${CMAKE_CXX_FLAGS} ${OPENCV_EXTRA_FLAGS} ${OPENCV_EXTRA_CXX_FLAGS}" MATCHES "implicit-fallthrough"
 Index: modules/core/src/utils/filesystem.cpp
---- modules/core/src/utils/filesystem.cpp.orig	2018-11-17 11:22:17.000000000 +0100
-+++ modules/core/src/utils/filesystem.cpp	2018-11-17 20:44:47.076508000 +0100
+--- modules/core/src/utils/filesystem.cpp.orig	2018-11-18 10:19:28.000000000 +0100
++++ modules/core/src/utils/filesystem.cpp	2018-11-19 07:21:32.292768000 +0100
 @@ -34,7 +34,7 @@
  #include <errno.h>
  #include <io.h>
@@ -85,8 +81,8 @@ Index: modules/core/src/utils/filesystem.cpp
  struct FileLock::Impl
  {
 Index: modules/dnn/src/torch/THGeneral.cpp
---- modules/dnn/src/torch/THGeneral.cpp.orig	2018-11-17 11:22:17.000000000 +0100
-+++ modules/dnn/src/torch/THGeneral.cpp	2018-11-17 20:44:47.076690000 +0100
+--- modules/dnn/src/torch/THGeneral.cpp.orig	2018-11-18 10:19:28.000000000 +0100
++++ modules/dnn/src/torch/THGeneral.cpp	2018-11-19 07:21:32.292893000 +0100
 @@ -2,7 +2,7 @@
  
  #if defined(TH_DISABLE_HEAP_TRACKING)
diff --git a/opencv/opencv.spec b/opencv/opencv.spec
index 326153a140..d5b4439b97 100644
--- a/opencv/opencv.spec
+++ b/opencv/opencv.spec
@@ -22,8 +22,8 @@
 ##
 
 #   package version
-%define       V_opkg 3.4.4
-%define       V_dist 3.4.4
+%define       V_opkg 4.0.0
+%define       V_dist 4.0.0
 
 #   package information
 Name:         opencv
@@ -36,7 +36,7 @@ Class:        PLUS
 Group:        Graphics
 License:      BSD
 Version:      %{V_opkg}
-Release:      20181118
+Release:      20181119
 
 #   package options
 %option       with_contrib  no