diff --git a/tests/by-util/test_cp.rs b/tests/by-util/test_cp.rs
index e44f35b879..e54e98e7ec 100644
--- a/tests/by-util/test_cp.rs
+++ b/tests/by-util/test_cp.rs
@@ -2907,7 +2907,7 @@ fn test_copy_through_dangling_symlink_no_dereference_permissions() {
     //               target name    link name
     at.symlink_file("no-such-file", "dangle");
     // to check if access time and modification time didn't change
-    sleep(Duration::from_millis(5000));
+    sleep(Duration::from_millis(100));
     //          don't dereference the link
     //           |    copy permissions, too
     //           |      |    from the link
diff --git a/tests/by-util/test_install.rs b/tests/by-util/test_install.rs
index 9c6e48c7b9..77be3a5ab1 100644
--- a/tests/by-util/test_install.rs
+++ b/tests/by-util/test_install.rs
@@ -577,7 +577,7 @@ fn test_install_copy_then_compare_file_with_extra_mode() {
 
     let mut file2_meta = at.metadata(file2);
     let before = FileTime::from_last_modification_time(&file2_meta);
-    sleep(std::time::Duration::from_millis(1000));
+    sleep(std::time::Duration::from_millis(100));
 
     scene
         .ucmd()
@@ -594,7 +594,7 @@ fn test_install_copy_then_compare_file_with_extra_mode() {
 
     assert!(before != after_install_sticky);
 
-    sleep(std::time::Duration::from_millis(1000));
+    sleep(std::time::Duration::from_millis(100));
 
     // dest file still 1644, so need_copy ought to return `true`
     scene
diff --git a/tests/by-util/test_test.rs b/tests/by-util/test_test.rs
index 22976dd9ee..d331417900 100644
--- a/tests/by-util/test_test.rs
+++ b/tests/by-util/test_test.rs
@@ -381,7 +381,7 @@ fn test_newer_file() {
     let scenario = TestScenario::new(util_name!());
 
     scenario.fixtures.touch("regular_file");
-    sleep(std::time::Duration::from_millis(1000));
+    sleep(std::time::Duration::from_millis(100));
     scenario.fixtures.touch("newer_file");
 
     scenario
@@ -949,7 +949,7 @@ fn test_file_N() {
     scene.ucmd().args(&["-N", "regular_file"]).fails();
     // The file will have different create/modified data
     // so, test -N will return 0
-    sleep(std::time::Duration::from_millis(1000));
+    sleep(std::time::Duration::from_millis(100));
     at.touch("regular_file");
     scene.ucmd().args(&["-N", "regular_file"]).succeeds();
 }