diff --git a/.gitignore b/.gitignore
index 41c927c..2b79508 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1 @@
-/childprocess-0.3.6.gem
-/childprocess-0.3.9.gem
-/childprocess-0.5.3.gem
-/childprocess-0.5.9.gem
-/childprocess-1.0.1.gem
+/childprocess-*.gem
diff --git a/rubygem-childprocess-1.0.1-Rewrite-unix-fork-reopen-to-be-compatible-with-ruby-2.6.patch b/rubygem-childprocess-1.0.1-Rewrite-unix-fork-reopen-to-be-compatible-with-ruby-2.6.patch
deleted file mode 100644
index 69f3e0a..0000000
--- a/rubygem-childprocess-1.0.1-Rewrite-unix-fork-reopen-to-be-compatible-with-ruby-2.6.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-From 21973e113d4e2f6ad603184609f253af27fd1521 Mon Sep 17 00:00:00 2001
-From: Hans de Graaff <hans@degraaff.org>
-Date: Mon, 29 Apr 2019 18:41:35 +0200
-Subject: [PATCH] Rewrite unix fork reopen to be compatible with ruby 2.6
-
-On ruby 2.6 the original code would fail specs:
-
-lib/childprocess/unix/fork_exec_process.rb:32:in `reopen': exclusive
-access mode is not supported (ArgumentError)
-
-The documentation for reopen shows that it has two ways to call it:
-
-  reopen(other_IO) -> ios
-  reopen(path, mode [,opt]) -> ios
-
-With ruby 2.4 and 2.5 calling reopen with a path and no mode seems to
-work fine, but with ruby 2.6 this triggers the spec failure.
-
-This commit splits the calls based on stdout/stderr availability so
-that both types of reopen calls can get the required parameters. This
-fixes the 2.6 specs while being backward compatible with ruby 2.4 and
-2.5.
----
- lib/childprocess/unix/fork_exec_process.rb | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
-diff --git a/lib/childprocess/unix/fork_exec_process.rb b/lib/childprocess/unix/fork_exec_process.rb
-index 5ed2a79..cc7a850 100644
---- a/lib/childprocess/unix/fork_exec_process.rb
-+++ b/lib/childprocess/unix/fork_exec_process.rb
-@@ -29,8 +29,16 @@ def launch_process
-           exec_r.close
-           set_env
- 
--          STDOUT.reopen(stdout || "/dev/null")
--          STDERR.reopen(stderr || "/dev/null")
-+          if stdout
-+            STDOUT.reopen(stdout)
-+          else
-+            STDOUT.reopen("/dev/null", "a+")
-+          end
-+          if stderr
-+            STDERR.reopen(stderr)
-+          else
-+            STDERR.reopen("/dev/null", "a+")
-+          end
- 
-           if duplex?
-             STDIN.reopen(reader)
diff --git a/rubygem-childprocess.spec b/rubygem-childprocess.spec
index 415c6e0..74bc375 100644
--- a/rubygem-childprocess.spec
+++ b/rubygem-childprocess.spec
@@ -1,15 +1,12 @@
 %global gem_name childprocess
 
 Name: rubygem-%{gem_name}
-Version: 1.0.1
-Release: 8%{?dist}
+Version: 4.1.0
+Release: 1%{?dist}
 Summary: A gem for controlling external programs running in the background
 License: MIT
 URL: http://github.com/enkessler/childprocess
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
-# Fix Ruby 2.6 compatibility.
-# https://github.com/enkessler/childprocess/pull/149
-Patch0: rubygem-childprocess-1.0.1-Rewrite-unix-fork-reopen-to-be-compatible-with-ruby-2.6.patch
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
 BuildRequires: rubygem(ffi)
@@ -34,19 +31,8 @@ Documentation for %{name}.
 %prep
 %setup -q -n %{gem_name}-%{version}
 
-%patch0 -p1
-
-# Disable windows specific installation of FFI gem.
-sed -i "/extensions/ s/^/#/" ../%{gem_name}-%{version}.gemspec
-%gemspec_remove_dep -g rake '< 13.0'
-%gemspec_remove_file "ext/mkrf_conf.rb"
-
 %build
-# Create the gem as gem install only works on a gem file
 gem build ../%{gem_name}-%{version}.gemspec
-
-# %%gem_install compiles any C extensions and installs the gem into ./%%gem_dir
-# by default, so that we can move it into the buildroot in %%install
 %gem_install
 
 %install
@@ -67,6 +53,11 @@ sed -i "/gemspec.validate/ s/^/#/" spec/childprocess_spec.rb
 # in the environment" test case.
 LC_ALL=C.UTF-8 RUBYOPT=-Ilib rspec spec
 
+# Disable test failing for posix-spawn
+# https://github.com/enkessler/childprocess/issues/173
+sed -i '/^\s*it "can write to stdin interactively if duplex = true" do$/ a \
+  skip' spec/io_spec.rb
+
 # Test also posix_spawn, which requires FFI.
 CHILDPROCESS_POSIX_SPAWN=true LC_ALL=C.UTF-8 RUBYOPT=-Ilib rspec spec
 popd
@@ -91,6 +82,10 @@ popd
 %{gem_instdir}/spec
 
 %changelog
+* Fri Sep 17 2021 Pavel Valena <pvalena@redhat.com> - 4.1.0-1
+- Update to childprocess 4.1.0.
+  Resolves: rhbz#1733782
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.1-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
 
diff --git a/sources b/sources
index ab31c8f..6815383 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (childprocess-1.0.1.gem) = efe61096dd09f6278582763692104fcc3beacfc96065372afdee355b68ef6ed498baf855f911d2a0b3a186d978d6d737519ae189064293af2d756a7356dad30d
+SHA512 (childprocess-4.1.0.gem) = e635c3acfa5ad85891c3879f240c7e96d47d7d5ec3f472f4ce6661552b0fb7bd72c5e3b9fb73f4f9312b749fbe554b4be388e56a31a3c63c39743d055d774def