diff --git a/add-container-gid-to-additional-groups.patch b/add-container-gid-to-additional-groups.patch
deleted file mode 100644
index d0778a0..0000000
--- a/add-container-gid-to-additional-groups.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 9934b17365083ce966b44c5ce3c7e052f516e255 Mon Sep 17 00:00:00 2001
-From: Aditya R <arajan@redhat.com>
-Date: Wed, 24 Aug 2022 08:42:23 +0530
-Subject: [PATCH] run: add container gid to additional groups
-
-When container is created with specific uid and gid also add container
-gid to supplementary/additional group.
-
-Signed-off-by: Aditya R <arajan@redhat.com>
----
- run_common.go                            |  1 +
- tests/bud.bats                           | 16 ++++++++++++++++
- tests/bud/supplemental-groups/Dockerfile |  3 +++
- tests/run.bats                           | 14 ++++++++++++++
- 4 files changed, 34 insertions(+)
- create mode 100644 tests/bud/supplemental-groups/Dockerfile
-
-diff --git a/run_common.go b/run_common.go
-index 2054c56527..f5a5ec8505 100644
---- a/run_common.go
-+++ b/run_common.go
-@@ -262,6 +262,7 @@ func (b *Builder) configureUIDGID(g *generate.Generator, mountPoint string, opti
- 	}
- 	g.SetProcessUID(user.UID)
- 	g.SetProcessGID(user.GID)
-+	g.AddProcessAdditionalGid(user.GID)
- 	for _, gid := range user.AdditionalGids {
- 		g.AddProcessAdditionalGid(gid)
- 	}
-diff --git a/tests/bud.bats b/tests/bud.bats
-index a37e418b41..07bdf45cac 100644
---- a/tests/bud.bats
-+++ b/tests/bud.bats
-@@ -366,6 +366,22 @@ _EOF
-   expect_output --substring "invalid response status"
- }
- 
-+@test "build test has gid in supplemental groups" {
-+  _prefetch alpine
-+  run_buildah build $WITH_POLICY_JSON -t source -f $BUDFILES/supplemental-groups/Dockerfile
-+  # gid 1000 must be in supplemental groups
-+  expect_output --substring "Groups:	1000"
-+}
-+
-+@test "build test if supplemental groups has gid with --isolation chroot" {
-+  test -z "${BUILDAH_ISOLATION}" || skip "BUILDAH_ISOLATION=${BUILDAH_ISOLATION} overrides --isolation"
-+
-+  _prefetch alpine
-+  run_buildah build --isolation chroot $WITH_POLICY_JSON -t source -f $BUDFILES/supplemental-groups/Dockerfile
-+  # gid 1000 must be in supplemental groups
-+  expect_output --substring "Groups:	1000"
-+}
-+
- # Test skipping images with FROM
- @test "build-test skipping unwanted stages with FROM" {
-   mkdir -p ${TEST_SCRATCH_DIR}/bud/platform
-diff --git a/tests/bud/supplemental-groups/Dockerfile b/tests/bud/supplemental-groups/Dockerfile
-new file mode 100644
-index 0000000000..462d9ea7a4
---- /dev/null
-+++ b/tests/bud/supplemental-groups/Dockerfile
-@@ -0,0 +1,3 @@
-+FROM alpine
-+USER 1000:1000
-+RUN cat /proc/$$/status
-diff --git a/tests/run.bats b/tests/run.bats
-index 2e8836c470..e34091fcbe 100644
---- a/tests/run.bats
-+++ b/tests/run.bats
-@@ -349,6 +349,20 @@ function configure_and_check_user() {
-   expect_output "888:888"
- }
- 
-+@test "run --user and verify gid in supplemental groups" {
-+  skip_if_no_runtime
-+
-+  # Create the container.
-+  _prefetch alpine
-+  run_buildah from $WITH_POLICY_JSON alpine
-+  ctr="$output"
-+
-+  # Run with uid:gid 1000:1000 and verify if gid is present in additional groups
-+  run_buildah run --user 1000:1000 "$ctr" cat /proc/self/status
-+  # gid 1000 must be in additional/supplemental groups
-+  expect_output --substring "Groups:	1000 "
-+}
-+
- @test "run --workingdir" {
- 	skip_if_no_runtime
- 
diff --git a/buildah.changes b/buildah.changes
index 8f6b420..7e745ec 100644
--- a/buildah.changes
+++ b/buildah.changes
@@ -4,6 +4,8 @@ Mon Sep 12 09:57:27 UTC 2022 - dcermak@suse.com
 - Update to version 1.27.1:
   * release: bump to v1.27.1
   * run: add container gid to additional groups
+- Drop add-container-gid-to-additional-groups.patch
+  (merged upstream)
 
 -------------------------------------------------------------------
 Fri Aug 26 12:13:12 UTC 2022 - Dan Čermák <dcermak@suse.com>
diff --git a/buildah.spec b/buildah.spec
index 6211259..9242363 100644
--- a/buildah.spec
+++ b/buildah.spec
@@ -26,7 +26,6 @@ Group:          System/Management
 URL:            https://%{project}
 Source0:        %{name}-%{version}.tar.xz
 Source1:        %{name}-rpmlintrc
-Patch0:         https://github.com/containers/buildah/commit/f0b2d39b83cd3bae8a6d0ef8c05fd384f81412a0.patch#./add-container-gid-to-additional-groups.patch
 BuildRequires:  bash-completion
 BuildRequires:  device-mapper-devel
 BuildRequires:  fdupes