diff --git a/adapters/opencv/opencv-4.11.patch b/adapters/opencv/opencv-4.11.patch
index 563f3deec03dee21066385e2cc6ebd50acd1500f..30962741c0d7da2feea1cc40ca6f3d5188dabb65 100644
--- a/adapters/opencv/opencv-4.11.patch
+++ b/adapters/opencv/opencv-4.11.patch
@@ -185,36 +185,6 @@ index dfc718bf87..c1f953f230 100644
      }
  
      interpolation &= ~WARP_RELATIVE_MAP;
-diff --git a/modules/imgproc/src/smooth.dispatch.cpp b/modules/imgproc/src/smooth.dispatch.cpp
-index f7dafbd956..13c1341716 100644
---- a/modules/imgproc/src/smooth.dispatch.cpp
-+++ b/modules/imgproc/src/smooth.dispatch.cpp
-@@ -655,6 +655,25 @@ void GaussianBlur(InputArray _src, OutputArray _dst, Size ksize,
-             ocl_GaussianBlur_8UC1(_src, _dst, ksize, CV_MAT_DEPTH(type), kx, ky, borderType)
-     );
- 
-+    {
-+        Mat src = _src.getMat();
-+        Mat dst = _dst.getMat();
-+
-+        Point ofs;
-+        Size wsz(src.cols, src.rows);
-+        if(!(borderType & BORDER_ISOLATED))
-+            src.locateROI( wsz, ofs );
-+
-+        if (sigma1 == 0.0 && sigma2 == 0.0 && ksize.height == ksize.width) {
-+            CALL_HAL(gaussianBlurBinomial, cv_hal_gaussianBlurBinomial, src.ptr(), src.step, dst.ptr(), dst.step, src.cols, src.rows, sdepth, cn,
-+                    ofs.x, ofs.y, wsz.width - src.cols - ofs.x, wsz.height - src.rows - ofs.y, ksize.width, borderType&~BORDER_ISOLATED);
-+        }
-+
-+        CALL_HAL(gaussianBlur, cv_hal_gaussianBlur, src.ptr(), src.step, dst.ptr(), dst.step, src.cols, src.rows, sdepth, cn,
-+                ofs.x, ofs.y, wsz.width - src.cols - ofs.x, wsz.height - src.rows - ofs.y, ksize.width, ksize.height,
-+                sigma1, sigma2, borderType&~BORDER_ISOLATED);
-+    }
-+
-     if(sdepth == CV_8U && ((borderType & BORDER_ISOLATED) || !_src.isSubmatrix()))
-     {
-         std::vector<ufixedpoint16> fkx, fky;
 diff --git a/modules/imgproc/test/test_imgwarp_strict.cpp b/modules/imgproc/test/test_imgwarp_strict.cpp
 index 673c6f03e6..56d9e0b554 100644
 --- a/modules/imgproc/test/test_imgwarp_strict.cpp
diff --git a/conformity/opencv/test_gaussian_blur.cpp b/conformity/opencv/test_gaussian_blur.cpp
index 776fbec2bf6499cedc230569d8d3e80d7e2e2226..d40bddd67631e741d39735ee3c8b5f7b200d6233 100644
--- a/conformity/opencv/test_gaussian_blur.cpp
+++ b/conformity/opencv/test_gaussian_blur.cpp
@@ -15,7 +15,8 @@ cv::Mat exec_gaussian_blur(cv::Mat& input) {
   cv::Mat input_mat = input.rowRange(0, input.rows - 2).clone();
   cv::Size kernel(KernelSize, KernelSize);
   cv::Mat result;
-  cv::GaussianBlur(input_mat, result, kernel, sigma, sigma, BorderType);
+  cv::GaussianBlur(input_mat, result, kernel, sigma, sigma, BorderType,
+                   cv::ALGO_HINT_APPROX);
   return result;
 }
 
diff --git a/scripts/benchmark/build.sh b/scripts/benchmark/build.sh
index c061f7480cc774d79c461695fec1a0a48ce0c3b2..237ad1374da2fe099375ce9c5ec20a2c8bc1a3f0 100755
--- a/scripts/benchmark/build.sh
+++ b/scripts/benchmark/build.sh
@@ -42,6 +42,7 @@ KLEIDICV_SOURCE_PATH="$(realpath "${SCRIPT_PATH}/..")"
 export COMMON_CMAKE_ARGS="\
   -DANDROID_ABI=arm64-v8a \
   -DBUILD_PERF_TESTS=ON \
+  -DOPENCV_ALGO_HINT_DEFAULT=ALGO_HINT_APPROX \
 "
 
 # ------------------------------------------------------------------------------
diff --git a/scripts/ci-opencv.sh b/scripts/ci-opencv.sh
index 248b393f041cd31f71e7083b9b07056c5aaa91fa..8482cbc9808d5b7c35795c9ed1ac0826e6bbdbdd 100755
--- a/scripts/ci-opencv.sh
+++ b/scripts/ci-opencv.sh
@@ -51,6 +51,7 @@ EXTRA_CMAKE_ARGS="\
   -DWITH_ADE=OFF \
   -DWITH_LAPACK=OFF \
   -DOPENCV_PYTHON_SKIP_DETECTION=ON \
+  -DOPENCV_ALGO_HINT_DEFAULT=ALGO_HINT_APPROX \
   -DCMAKE_COMPILE_WARNING_AS_ERROR=ON \
   -DCMAKE_CXX_FLAGS=-Wno-nontrivial-memcall" \
 ./scripts/build-opencv.sh
diff --git a/scripts/run_opencv_conformity_checks.sh b/scripts/run_opencv_conformity_checks.sh
index ab7183d1d55b6f77189fea0f555b3e4251c0e75f..6002ed2a76221e9708b12aa68742866460aa7657 100755
--- a/scripts/run_opencv_conformity_checks.sh
+++ b/scripts/run_opencv_conformity_checks.sh
@@ -59,6 +59,7 @@ common_cmake_args=(
     "-DWITH_ADE=OFF"
     "-DWITH_LAPACK=OFF"
     "-DOPENCV_PYTHON_SKIP_DETECTION=ON"
+    "-DOPENCV_ALGO_HINT_DEFAULT=ALGO_HINT_APPROX"
 )
 
 if [[ -n "${OPENCV_VERSION}" ]]; then