diff --git a/0001-Increase-the-value-of-FS_SLEEP-in-the-tests-fix-4.patch b/0001-Increase-the-value-of-FS_SLEEP-in-the-tests-fix-4.patch
new file mode 100644
index 0000000..f9b469c
--- /dev/null
+++ b/0001-Increase-the-value-of-FS_SLEEP-in-the-tests-fix-4.patch
@@ -0,0 +1,53 @@
+From 84a33f8ada6fba17641e71aef24130b1c0022fb9 Mon Sep 17 00:00:00 2001
+From: "Benjamin A. Beasley" <code@musicinmybrain.net>
+Date: Fri, 20 Jun 2025 11:30:03 -0400
+Subject: [PATCH] Increase the value of FS_SLEEP in the tests (fix #4)
+
+---
+ flexcache/testsuite/test_byhash.py  | 2 +-
+ flexcache/testsuite/test_bymtime.py | 2 +-
+ flexcache/testsuite/test_header.py  | 2 +-
+ 3 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/flexcache/testsuite/test_byhash.py b/flexcache/testsuite/test_byhash.py
+index d0aa8e7..9d15fdb 100644
+--- a/flexcache/testsuite/test_byhash.py
++++ b/flexcache/testsuite/test_byhash.py
+@@ -8,7 +8,7 @@ from flexcache import DiskCacheByHash
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def parser(p: pathlib.Path):
+diff --git a/flexcache/testsuite/test_bymtime.py b/flexcache/testsuite/test_bymtime.py
+index 0b3dc94..72cfeba 100644
+--- a/flexcache/testsuite/test_bymtime.py
++++ b/flexcache/testsuite/test_bymtime.py
+@@ -8,7 +8,7 @@ from flexcache import DiskCacheByMTime
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def parser(p: pathlib.Path):
+diff --git a/flexcache/testsuite/test_header.py b/flexcache/testsuite/test_header.py
+index f27a516..1301273 100644
+--- a/flexcache/testsuite/test_header.py
++++ b/flexcache/testsuite/test_header.py
+@@ -13,7 +13,7 @@ import flexcache
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def test_empty(tmp_path):
+-- 
+2.49.0
+
diff --git a/5.patch b/5.patch
new file mode 100644
index 0000000..9de5e48
--- /dev/null
+++ b/5.patch
@@ -0,0 +1,50 @@
+From 84a33f8ada6fba17641e71aef24130b1c0022fb9 Mon Sep 17 00:00:00 2001
+From: "Benjamin A. Beasley" <code@musicinmybrain.net>
+Date: Fri, 20 Jun 2025 11:30:03 -0400
+Subject: [PATCH] Increase the value of FS_SLEEP in the tests (fix #4)
+
+---
+ flexcache/testsuite/test_byhash.py  | 2 +-
+ flexcache/testsuite/test_bymtime.py | 2 +-
+ flexcache/testsuite/test_header.py  | 2 +-
+ 3 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/flexcache/testsuite/test_byhash.py b/flexcache/testsuite/test_byhash.py
+index d0aa8e7..9d15fdb 100644
+--- a/flexcache/testsuite/test_byhash.py
++++ b/flexcache/testsuite/test_byhash.py
+@@ -8,7 +8,7 @@
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def parser(p: pathlib.Path):
+diff --git a/flexcache/testsuite/test_bymtime.py b/flexcache/testsuite/test_bymtime.py
+index 0b3dc94..72cfeba 100644
+--- a/flexcache/testsuite/test_bymtime.py
++++ b/flexcache/testsuite/test_bymtime.py
+@@ -8,7 +8,7 @@
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def parser(p: pathlib.Path):
+diff --git a/flexcache/testsuite/test_header.py b/flexcache/testsuite/test_header.py
+index f27a516..1301273 100644
+--- a/flexcache/testsuite/test_header.py
++++ b/flexcache/testsuite/test_header.py
+@@ -13,7 +13,7 @@
+ 
+ # These sleep time is needed when run on GitHub Actions
+ # If not given or too short, some mtime changes are not visible.
+-FS_SLEEP = 0.010
++FS_SLEEP = 0.100
+ 
+ 
+ def test_empty(tmp_path):
diff --git a/python-flexcache.spec b/python-flexcache.spec
index 01fe0a9..13a00f0 100644
--- a/python-flexcache.spec
+++ b/python-flexcache.spec
@@ -7,6 +7,15 @@ License:        BSD-3-Clause
 URL:            https://github.com/hgrecco/flexcache
 Source:         %{pypi_source flexcache}
 
+# Increase the value of FS_SLEEP in the tests (fix #4)
+# https://github.com/hgrecco/flexcache/pull/5
+#
+# Fixes:
+#
+# test_name_by_paths fails flakily on ppc64le and s390x
+# https://github.com/hgrecco/flexcache/issues/4
+Patch:          %{url}/pull/5.patch
+
 BuildSystem:            pyproject
 BuildOption(install):   -l flexcache
 # We remove flexcache.testsuite manually in %%install.