diff --git a/extra/opencv/.SRCINFO b/extra/opencv/.SRCINFO
index 5cc23682c..1ff82f0c5 100644
--- a/extra/opencv/.SRCINFO
+++ b/extra/opencv/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = opencv
 	pkgdesc = Open Source Computer Vision Library
-	pkgver = 4.8.1
-	pkgrel = 4
+	pkgver = 4.9.0
+	pkgrel = 1
 	url = https://opencv.org/
 	arch = x86_64
 	license = BSD
@@ -53,14 +53,12 @@ pkgbase = opencv
 	optdepends = hdf5: for the HDF5 module
 	optdepends = opencl-icd-loader: For coding with OpenCL
 	optdepends = java-runtime: Java interface
-	source = https://github.com/opencv/opencv/archive/4.8.1/opencv-4.8.1.tar.gz
-	source = https://github.com/opencv/opencv_contrib/archive/4.8.1/opencv_contrib-4.8.1.tar.gz
+	source = https://github.com/opencv/opencv/archive/4.9.0/opencv-4.9.0.tar.gz
+	source = https://github.com/opencv/opencv_contrib/archive/4.9.0/opencv_contrib-4.9.0.tar.gz
 	source = vtk9.patch
-	source = cuda-12.2.patch
-	sha256sums = 62f650467a60a38794d681ae7e66e3e8cfba38f445e0bf87867e2f2cdc8be9d5
-	sha256sums = 0c082a0b29b3118f2a0a1856b403bb098643af7b994a0080f402a12159a99c6e
+	sha256sums = ddf76f9dffd322c7c3cb1f721d0887f62d747b82059342213138dc190f28bc6c
+	sha256sums = 8952c45a73b75676c522dd574229f563e43c271ae1d5bbbd26f8e2b6bc1a4dae
 	sha256sums = f35a2d4ea0d6212c7798659e59eda2cb0b5bc858360f7ce9c696c77d3029668e
-	sha256sums = 2acacd8df0fab431aa2197304c4496f3e4d8a8de9305994a6474e4c66dc3a159
 
 pkgname = opencv
 
@@ -108,6 +106,6 @@ pkgname = opencv-cuda
 	depends = tbb
 	depends = zlib
 	depends = cudnn
-	provides = opencv=4.8.1
+	provides = opencv=4.9.0
 	conflicts = opencv
 	options = !debug
diff --git a/extra/opencv/PKGBUILD b/extra/opencv/PKGBUILD
index c534bc85c..a9502fab2 100644
--- a/extra/opencv/PKGBUILD
+++ b/extra/opencv/PKGBUILD
@@ -11,8 +11,8 @@ pkgbase=opencv
 pkgname=(opencv
          opencv-samples
          python-opencv)
-pkgver=4.8.1
-pkgrel=4
+pkgver=4.9.0
+pkgrel=1
 pkgdesc='Open Source Computer Vision Library'
 arch=(x86_64)
 license=(BSD)
@@ -66,16 +66,13 @@ optdepends=('opencv-samples: samples'
             'java-runtime: Java interface')
 source=(https://github.com/opencv/opencv/archive/$pkgver/$pkgname-$pkgver.tar.gz
         https://github.com/opencv/opencv_contrib/archive/$pkgver/opencv_contrib-$pkgver.tar.gz
-        vtk9.patch
-        cuda-12.2.patch)
-sha256sums=('62f650467a60a38794d681ae7e66e3e8cfba38f445e0bf87867e2f2cdc8be9d5'
-            '0c082a0b29b3118f2a0a1856b403bb098643af7b994a0080f402a12159a99c6e'
-            'f35a2d4ea0d6212c7798659e59eda2cb0b5bc858360f7ce9c696c77d3029668e'
-            '2acacd8df0fab431aa2197304c4496f3e4d8a8de9305994a6474e4c66dc3a159')
+        vtk9.patch)
+sha256sums=('ddf76f9dffd322c7c3cb1f721d0887f62d747b82059342213138dc190f28bc6c'
+            '8952c45a73b75676c522dd574229f563e43c271ae1d5bbbd26f8e2b6bc1a4dae'
+            'f35a2d4ea0d6212c7798659e59eda2cb0b5bc858360f7ce9c696c77d3029668e')
 
 prepare() {
   patch -d $pkgname-$pkgver -p1 < vtk9.patch # Don't require all vtk optdepends
-  patch -d $pkgname-$pkgver -p1 < cuda-12.2.patch # Fix build with CUDA 12.2
 }
 
 build() {
diff --git a/extra/opencv/cuda-12.2.patch b/extra/opencv/cuda-12.2.patch
deleted file mode 100644
index e35e0d274..000000000
--- a/extra/opencv/cuda-12.2.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-diff --git a/modules/dnn/src/cuda4dnn/primitives/normalize_bbox.hpp b/modules/dnn/src/cuda4dnn/primitives/normalize_bbox.hpp
-index f067dddaa701..77b5ee81a08e 100644
---- a/modules/dnn/src/cuda4dnn/primitives/normalize_bbox.hpp
-+++ b/modules/dnn/src/cuda4dnn/primitives/normalize_bbox.hpp
-@@ -111,7 +111,7 @@ namespace cv { namespace dnn { namespace cuda4dnn {
-              * or there might be several weights
-              * or we don't have to scale
-              */
--            if (weight != 1.0)
-+            if (weight != static_cast<T>(1.0))
-             {
-                 kernels::scale1_with_bias1<T>(stream, output, input, weight, 1.0);
-             }
-diff --git a/modules/dnn/src/cuda4dnn/primitives/region.hpp b/modules/dnn/src/cuda4dnn/primitives/region.hpp
-index d22d44214e7b..cd44f061ec98 100644
---- a/modules/dnn/src/cuda4dnn/primitives/region.hpp
-+++ b/modules/dnn/src/cuda4dnn/primitives/region.hpp
-@@ -121,7 +121,7 @@ namespace cv { namespace dnn { namespace cuda4dnn {
-                 new_coords
-             );
- 
--            if (nms_iou_threshold > 0) {
-+            if (nms_iou_threshold > static_cast<T>(0)) {
-                 auto output_mat = output_wrapper->getMutableHostMat();
-                 CV_Assert(output_mat.type() == CV_32F);
-                 for (int i = 0; i < input.get_axis_size(0); i++) {
-