diff --git a/Cargo.lock b/Cargo.lock
index 24a53fe8db4..bdc5823e44f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4075,6 +4075,7 @@ dependencies = [
  "rand 0.9.2",
  "rand_chacha 0.9.0",
  "rand_core 0.9.5",
+ "rustc-hash",
  "sha3",
  "uucore",
 ]
diff --git a/src/uu/shuf/Cargo.toml b/src/uu/shuf/Cargo.toml
index b271d9b9b57..cd2c5007267 100644
--- a/src/uu/shuf/Cargo.toml
+++ b/src/uu/shuf/Cargo.toml
@@ -26,6 +26,7 @@ rand_core = { workspace = true }
 sha3 = { workspace = true }
 uucore = { workspace = true }
 fluent = { workspace = true }
+rustc-hash = "2.1.1"
 
 [[bin]]
 name = "shuf"
diff --git a/src/uu/shuf/src/nonrepeating_iterator.rs b/src/uu/shuf/src/nonrepeating_iterator.rs
index d05844ba9d1..b74103394f7 100644
--- a/src/uu/shuf/src/nonrepeating_iterator.rs
+++ b/src/uu/shuf/src/nonrepeating_iterator.rs
@@ -1,4 +1,6 @@
-use std::collections::HashMap;
+// hijack HashMap for performance
+type HashMap<K, V> = std::collections::HashMap<K, V, rustc_hash::FxBuildHasher>;
+
 use std::ops::RangeInclusive;
 
 use uucore::error::UResult;