diff --git a/opencv.spec b/opencv.spec
index 942ba86..20cf754 100644
--- a/opencv.spec
+++ b/opencv.spec
@@ -1,5 +1,11 @@
 %undefine __cmake_in_source_build
+# Tests are disabled with gcc-11
+# See https://bugzilla.redhat.com/1944536
+%if 0%{?fedora} > 33
+%bcond_with     tests
+%else
 %bcond_without  tests
+%endif
 %bcond_with     ffmpeg
 %bcond_without  gstreamer
 %bcond_with     eigen2
@@ -40,12 +46,19 @@
 
 %global srcname opencv
 
+# If _cuda_version is unset
+%if 0%{!?_cuda_version:1} && 0%{?with_cuda:1}
+%global _cuda_version 11.2
+%global _cuda_rpm_version 11-2
+%global _cuda_prefix /usr/local/cuda-%{_cuda_version}
+%bcond_without dnn_cuda
+%endif
 
 Name:           opencv
-Version:        4.5.1
+Version:        4.5.2
 %global javaver %(foo=%{version}; echo ${foo//./})
 %global abiver  %(foo=%{version}; echo ${foo:0:3})
-Release:        6%{?dist}
+Release:        2%{?dist}
 Summary:        Collection of algorithms for computer vision
 # This is normal three clause BSD.
 License:        BSD
@@ -71,9 +84,11 @@ BuildRequires:  libtool
 BuildRequires:  cmake >= 2.6.3
 BuildRequires:  chrpath
 %{?with_cuda:
-BuildRequires:  pkgconfig(cublas-%{?_cuda_rpm_version})
-BuildRequires:  pkgconfig(cufft-%{?_cuda_rpm_version})
-BuildRequires:  pkgconfig(nppc-%{?_cuda_rpm_version})
+BuildRequires:  cuda-minimal-build-%{?_cuda_rpm_version}
+BuildRequires:  pkgconfig(cublas-%{?_cuda_version})
+BuildRequires:  pkgconfig(cufft-%{?_cuda_version})
+BuildRequires:  pkgconfig(nppc-%{?_cuda_version})
+%{?with_dnn_cuda:BuildRequires: libcudnn8-devel}
 }
 %{?with_eigen2:BuildRequires:  eigen2-devel}
 %{?with_eigen3:BuildRequires:  eigen3-devel}
@@ -133,7 +148,7 @@ BuildRequires:  hdf5-devel
 BuildRequires:  openjpeg2-devel
 # Module opencv_ovis disabled because of incompatible OGRE3D version < 1.10
 # BuildRequires:  ogre-devel
-%{?with_vtk:BuildRequires: vtk-devel}
+%{?with_vtk:BuildRequires: vtk-devel vtk-java}
 %{?with_atlas:BuildRequires: atlas-devel}
 #ceres-solver-devel push eigen3-devel and tbb-devel
 %{?with_tbb:
@@ -271,6 +286,9 @@ install -pm 0644 %{SOURCE4} .cache/ade/
  -DWITH_ITT=OFF \
  -DWITH_QT=ON \
  -DWITH_OPENGL=ON \
+%if ! %{with tests}
+ -DBUILD_TESTS=OFF \
+%endif
  -DOpenGL_GL_PREFERENCE=GLVND \
  -DWITH_GDAL=ON \
  -DWITH_OPENEXR=ON \
@@ -293,6 +311,8 @@ install -pm 0644 %{SOURCE4} .cache/ade/
  -DCUDA_TOOLKIT_ROOT_DIR=%{?_cuda_prefix} \
  -DCUDA_VERBOSE_BUILD=ON \
  -DCUDA_PROPAGATE_HOST_FLAGS=OFF \
+ -DCUDA_NVCC_FLAGS="-Xcompiler -fPIC" \
+ %{?with_dnn_cuda:-DOPENCV_DNN_CUDA=ON} \
  } \
  %{?with_openni: -DWITH_OPENNI=ON } \
  %{!?with_xine: -DWITH_XINE=OFF } \
@@ -424,6 +444,10 @@ ln -s -r %{buildroot}%{_jnidir}/opencv-%{javaver}.jar %{buildroot}%{_jnidir}/ope
 %{_libdir}/libopencv_bgsegm.so.%{abiver}*
 %{_libdir}/libopencv_bioinspired.so.%{abiver}*
 %{_libdir}/libopencv_ccalib.so.%{abiver}*
+%{?with_cuda:
+%{_libdir}/libopencv_cuda*.so.%{abiver}*
+%{_libdir}/libopencv_cudev.so.%{abiver}*
+}
 %{_libdir}/libopencv_cvv.so.%{abiver}*
 %{_libdir}/libopencv_datasets.so.%{abiver}*
 %{_libdir}/libopencv_dnn_objdetect.so.%{abiver}*
@@ -457,11 +481,24 @@ ln -s -r %{buildroot}%{_jnidir}/opencv-%{javaver}.jar %{buildroot}%{_jnidir}/ope
 %if %{with vtk}
 %{_libdir}/libopencv_viz.so.%{abiver}*
 %endif
+%{_libdir}/libopencv_wechat_qrcode.so.%{abiver}*
 %{_libdir}/libopencv_ximgproc.so.%{abiver}*
 %{_libdir}/libopencv_xobjdetect.so.%{abiver}*
 %{_libdir}/libopencv_xphoto.so.%{abiver}*
 
 %changelog
+* Sat Jun 19 2021 Jiri Kucera <jkucera@redhat.com> - 4.5.2-2
+- Rebuild for gdal & vtk
+
+* Sat Apr 03 2021 Nicolas Chauvet <kwizart@gmail.com> - 4.5.2-1
+- Update to 4.5.2
+
+* Wed Mar 31 2021 Nicolas Chauvet <kwizart@gmail.com> - 4.5.1-8
+- Disable tests for now
+
+* Tue Mar 30 2021 Jonathan Wakely <jwakely@redhat.com> - 4.5.1-7
+- Rebuilt for removed libstdc++ symbol (#1937698)
+
 * Wed Feb 10 2021 Jiri Kucera <jkucera@redhat.com> - 4.5.1-6
 - Fix file lists
   Based on comparison of `opencv-4.5.1/modules/` and
diff --git a/sources b/sources
index 1a230c9..31d286b 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
-SHA512 (opencv-clean-4.5.1.tar.gz) = b93df3e0bc9162b350d6e921a1a21eb351dab6f785b08be2cdd5a5b912565cafbe45d3125dbc66f0b7642ccffe00fb8eb199729e07d1426d4f0956f8c63e8653
-SHA512 (opencv_contrib-clean-4.5.1.tar.gz) = f85e9e1ce08efa1eb31a4286387b77a9cb3466ec278db5db1a30318887fe905165559e56249e6aebaf4e33dee98063a790b230942ddf838df0e57a1535fbbf0b
-SHA512 (opencv_extra-clean-4.5.1.tar.gz) = 2c260978c6aacfc699e7e47cd70dc04d819c891f6bc7cc4d554cb0a6ad1bc05917d2d0ec1099c5c7c28c5fdf84531a14726fcd9ae4aff76e720650ddd6a88a21
 SHA512 (face_landmark_model.dat.xz) = 7558f29431bb9cad1f22ee067ad3ed41be8f68b865992eb7d3a5ce6b6b9e1d031cb03e33c3c149220ef8faebd0471703a8a3bbb06402bcc8ce76bd28317aa307
 SHA512 (b624b995ec9c439cbc2e9e6ee940d3a2-v0.1.1f.zip) = f2994d5e92a2ae05cee6e153943afe151ce734ced6e06dcdb02dee9fed9336a7f1ea69661d9e033f1412fbb5e2a44a6e641662c85be5ba0604d0446abeabe836
+SHA512 (opencv-clean-4.5.2.tar.gz) = f3083e8c31305f3ed6ba6f333524b0fd15ed55beafbb6480a044a4d44fc3d8d2be9e379ccbe555c3cfce48f3180d5a64169f86e584454e9b992bdaa35d1af847
+SHA512 (opencv_contrib-clean-4.5.2.tar.gz) = 15a494771ed41895de066e50798c663a35587ebf6a6e5b899571a289d9f644173322b388b387f543dec241bf6d262d868a49e3cd6d6d66180630484834697727
+SHA512 (opencv_extra-clean-4.5.2.tar.gz) = 4e3da960cd7535b64373b5cc3398d98856c6c4a26e5fce961fef6eb476a425c6a7583e11382b192db64b5838696aa0d399cdeb16a2db17d51bdc59db046460c9