diff --git a/.gitignore b/.gitignore
index f574170..af512d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@
 /opencv_contrib-clean-4.5.3.tar.gz
 /opencv-clean-4.5.4.tar.gz
 /opencv_contrib-clean-4.5.4.tar.gz
+/opencv-clean-4.5.5.tar.gz
+/opencv_contrib-clean-4.5.5.tar.gz
diff --git a/mingw-opencv.spec b/mingw-opencv.spec
index 86b5c07..e3a9b10 100644
--- a/mingw-opencv.spec
+++ b/mingw-opencv.spec
@@ -3,8 +3,8 @@
 %global pkgname opencv
 
 Name:          mingw-%{pkgname}
-Version:       4.5.4
-Release:       4%{?dist}
+Version:       4.5.5
+Release:       1%{?dist}
 Summary:       MinGW Windows OpenCV library
 
 BuildArch:     noarch
@@ -202,9 +202,9 @@ rm -f %{buildroot}%{mingw64_prefix}/{LICENSE,setup_vars_opencv4.cmd}
 
 %files -n mingw32-%{pkgname}
 %license install_licenses/*
-%{mingw32_bindir}/libopencv_*454.dll
+%{mingw32_bindir}/libopencv_*455.dll
 %{mingw32_includedir}/opencv4/
-%{mingw32_libdir}/libopencv_*454.dll.a
+%{mingw32_libdir}/libopencv_*455.dll.a
 %{mingw32_libdir}/cmake/OpenCV/
 %{mingw32_datadir}/opencv4
 
@@ -217,9 +217,9 @@ rm -f %{buildroot}%{mingw64_prefix}/{LICENSE,setup_vars_opencv4.cmd}
 
 %files -n mingw64-%{pkgname}
 %license install_licenses/*
-%{mingw64_bindir}/libopencv_*454.dll
+%{mingw64_bindir}/libopencv_*455.dll
 %{mingw64_includedir}/opencv4/
-%{mingw64_libdir}/libopencv_*454.dll.a
+%{mingw64_libdir}/libopencv_*455.dll.a
 %{mingw64_libdir}/cmake/OpenCV/
 %{mingw64_datadir}/opencv4
 
@@ -231,6 +231,9 @@ rm -f %{buildroot}%{mingw64_prefix}/{LICENSE,setup_vars_opencv4.cmd}
 
 
 %changelog
+* Sun Jan 02 2022 Sandro Mani <manisandro@gmail.com> - 4.5.5-1
+- Update to 4.5.5
+
 * Thu Nov 11 2021 Sandro Mani <manisandro@gmail.com> - 4.5.4-4
 - Rebuild (gdal)
 
diff --git a/sources b/sources
index 015869e..49a284d 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (opencv-clean-4.5.4.tar.gz) = 8f64456b046a1b572ae13c8175b2973e48a56788eb3720d0d171d11ce982fdaee27b0e347f3616472fb5c19272e0d6b33dd6ff3da2633835f66e263e0c0b6082
-SHA512 (opencv_contrib-clean-4.5.4.tar.gz) = bf11d683a1c330d40641fcfc26025f887cef6849bf8c425677a2aad553f6375277ead8b57b60617a62ebb9001556893152426edb456a2981e50768c7c1d0995d
+SHA512 (opencv-clean-4.5.5.tar.gz) = 793772f0a2c4011007dbc014551f710b1a66bad137880e22172d9dc459d3d291b4d6e3367362c4268484ff019002d46623ed434a534c2347f9b5b2a4cbe97e51
+SHA512 (opencv_contrib-clean-4.5.5.tar.gz) = 66d0cead39bec36574fc8da8fa2c969563de5fe6547cd57588b331ad2a8539af7a4340e4fbb69ff9c15f5e633cfb8d06d6aeee37d4789044c8a76ab8262a7e99