diff --git a/00304-test-posix-pass-environ.patch b/00304-test-posix-pass-environ.patch
deleted file mode 100644
index 9780674..0000000
--- a/00304-test-posix-pass-environ.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
-index da0135b..1b27b5f 100644
---- a/Lib/test/test_posix.py
-+++ b/Lib/test/test_posix.py
-@@ -1463,7 +1463,7 @@ class TestPosixSpawn(unittest.TestCase):
-         """
-         pid = posix.posix_spawn(sys.executable,
-                                 [sys.executable, '-c', script],
--                                {'foo': 'bar'})
-+                                {**os.environ, 'foo': 'bar'})
-         self.assertEqual(os.waitpid(pid, 0), (pid, 0))
-         with open(envfile) as f:
-             self.assertEqual(f.read(), 'bar')
diff --git a/python37.spec b/python37.spec
index 8d6903a..29e306e 100644
--- a/python37.spec
+++ b/python37.spec
@@ -13,12 +13,12 @@ URL: https://www.python.org/
 
 
 # Third beta
-%global prerel b4
+%global prerel b5
 
 #  WARNING  When rebasing to a new Python version,
 #           remember to update the python3-docs package as well
 Version: %{pybasever}.0
-Release: 0.18.%{?prerel}%{?dist}
+Release: 0.19.%{?prerel}%{?dist}
 License: Python
 
 
@@ -347,13 +347,6 @@ Patch274: 00274-fix-arch-names.patch
 # and: https://src.fedoraproject.org/rpms/redhat-rpm-config/c/078af19
 Patch291: 00291-setup-Link-ctypes-against-dl-explicitly.patch
 
-# 00304 #
-# Pass os.environ to new process created at test_posix::test_specify_environment
-# Otherwise important variables such as LD_LIBRARY_PATH are not set and the
-# child process might not work at all
-# Proposed upstream: https://bugs.python.org/issue33455
-Patch304: 00304-test-posix-pass-environ.patch
-
 # (New patches go here ^^^)
 #
 # When adding new patches to "python" and "python3" in Fedora, EL, etc.,
@@ -671,7 +664,6 @@ sed -r -i s/'_PIP_VERSION = "[0-9.]+"'/'_PIP_VERSION = "%{pip_version}"'/ Lib/en
 %patch251 -p1
 %patch274 -p1
 %patch291 -p1
-%patch304 -p1
 
 
 # Remove files that should be generated by the build
@@ -1226,7 +1218,6 @@ CheckPython optimized
 %{dynload_dir}/_sqlite3.%{SOABI_optimized}.so
 %{dynload_dir}/_ssl.%{SOABI_optimized}.so
 %{dynload_dir}/_struct.%{SOABI_optimized}.so
-%{dynload_dir}/_xxsubinterpreters.%{SOABI_optimized}.so
 %{dynload_dir}/array.%{SOABI_optimized}.so
 %{dynload_dir}/audioop.%{SOABI_optimized}.so
 %{dynload_dir}/binascii.%{SOABI_optimized}.so
@@ -1490,7 +1481,6 @@ CheckPython optimized
 %{dynload_dir}/_sqlite3.%{SOABI_debug}.so
 %{dynload_dir}/_ssl.%{SOABI_debug}.so
 %{dynload_dir}/_struct.%{SOABI_debug}.so
-%{dynload_dir}/_xxsubinterpreters.%{SOABI_debug}.so
 %{dynload_dir}/array.%{SOABI_debug}.so
 %{dynload_dir}/audioop.%{SOABI_debug}.so
 %{dynload_dir}/binascii.%{SOABI_debug}.so
@@ -1567,6 +1557,9 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Thu May 31 2018 Miro Hrončok <mhroncok@redhat.com> - 3.7.0-0.19.b5
+- Update to 3.7.0b5
+
 * Sat May 12 2018 Miro Hrončok <mhroncok@redhat.com> - 3.7.0-0.18.b4
 - Bump the bundled pip version to 10.0.1
 
diff --git a/sources b/sources
index abc3c00..67aabf2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Python-3.7.0b4.tar.xz) = e97459a5467a984a5a2bfc08ed937dfeb899f3d4ff9a655878badffc19e722efc30112422c14f94fcf9f6c82ee01e9fe2bb538db83454e4c83b711d1a8444472
+SHA512 (Python-3.7.0b5.tar.xz) = 1623df6a250982b070788f47a5a6cc6c2fd6d8e6396cf6926b771abc35e4291bd4532f03e070f8010f17075d5bdb748ce8056ef9e1a2c54e518d58b75481b692