diff --git a/.gitignore b/.gitignore
index 25152e5..61f9fdc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@
 /rdma-core-45.0.tar.gz
 /rdma-core-46.0.tar.gz
 /rdma-core-48.0.tar.gz
+/rdma-core-50.0.tar.gz
diff --git a/rdma-core.spec b/rdma-core.spec
index 81b3b04..7e8b204 100644
--- a/rdma-core.spec
+++ b/rdma-core.spec
@@ -1,5 +1,5 @@
 Name: rdma-core
-Version: 48.0
+Version: 50.0
 Release: %autorelease
 Summary: RDMA core userspace libraries and daemons
 
@@ -29,17 +29,14 @@ BuildRequires: /usr/bin/rst2man
 BuildRequires: valgrind-devel
 BuildRequires: systemd
 BuildRequires: systemd-devel
-# https://github.com/linux-rdma/rdma-core/pull/1405
-%if (0%{?fedora} < 40 && 0%{?fedora} >= 32) || (0%{?rhel} >= 8 && 0%{?rhel} < 10)
+%if 0%{?fedora} >= 32 || 0%{?rhel} >= 8
 %define with_pyverbs %{?_with_pyverbs: 1} %{?!_with_pyverbs: %{?!_without_pyverbs: 1} %{?_without_pyverbs: 0}}
 %else
 %define with_pyverbs %{?_with_pyverbs: 1} %{?!_with_pyverbs: 0}
 %endif
 %if %{with_pyverbs}
 BuildRequires: python3-devel
-# FTBFS with Cython 3
-# pyverbs/device.c: error: redefinition of '__Pyx_Enum_ibv_event_type_to_py'
-BuildRequires: python3dist(cython) < 3
+BuildRequires: python3-Cython
 %else
 %if 0%{?rhel} >= 8 || 0%{?fedora} >= 30
 BuildRequires: python3
diff --git a/sources b/sources
index 2763652..a70afc8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (rdma-core-48.0.tar.gz) = 48303d830e83d4fb6a88e23764380872dadc4579e8a1a62275447fe4a6613aea9ac08876e4a58f5799af9455e6dabbced8bc8e1663812fe68a2d642a1152b195
+SHA512 (rdma-core-50.0.tar.gz) = 0d341300dde2a8756ab0e80bf8d316627c997e85661d50b51897aa03e1b7326f4ca7a6f24e370354779482a2d9455e58dbb07e6292ed8b511e7f195e4e2d1850