diff --git a/.gitignore b/.gitignore
index e34b422..1c388a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /scc-2.1.6.crate
+/scc-2.1.17.crate
diff --git a/rust-scc.spec b/rust-scc.spec
index 5a3b9ed..0052d82 100644
--- a/rust-scc.spec
+++ b/rust-scc.spec
@@ -1,13 +1,11 @@
 # Generated by rust2rpm 26
-# * non-deterministic test failures:
-#   https://github.com/wvwwvwwv/scalable-concurrent-containers/issues/153
-%bcond_with check
+%bcond_without check
 %global debug_package %{nil}
 
 %global crate scc
 
 Name:           rust-scc
-Version:        2.1.6
+Version:        2.1.17
 Release:        %autorelease
 Summary:        Containers and utilities for concurrent and asynchronous programming
 
@@ -16,6 +14,7 @@ URL:            https://crates.io/crates/scc
 Source:         %{crates_source}
 # Manually created patch for downstream crate metadata changes
 # * drop unused, benchmark-only criterion dev-dependency
+# * drop features for perturbation testing with loom
 Patch:          scc-fix-metadata.diff
 
 BuildRequires:  cargo-rpm-macros >= 24
diff --git a/rust2rpm.toml b/rust2rpm.toml
index 608bdda..7a96d11 100644
--- a/rust2rpm.toml
+++ b/rust2rpm.toml
@@ -2,11 +2,6 @@
 summary = "Containers and utilities for concurrent and asynchronous programming"
 cargo-toml-patch-comments = [
     "drop unused, benchmark-only criterion dev-dependency",
-]
-
-[tests]
-run = ["none"]
-comments = [
-    "non-deterministic test failures: https://github.com/wvwwvwwv/scalable-concurrent-containers/issues/153",
+    "drop features for perturbation testing with loom",
 ]
 
diff --git a/scc-fix-metadata.diff b/scc-fix-metadata.diff
index 8a5a7ab..c878f07 100644
--- a/scc-fix-metadata.diff
+++ b/scc-fix-metadata.diff
@@ -1,31 +1,40 @@
---- scc-2.1.6/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ scc-2.1.6/Cargo.toml	2024-08-02T18:38:22.563456+00:00
-@@ -34,35 +34,12 @@
- license = "Apache-2.0"
- repository = "https://github.com/wvwwvwwv/scalable-concurrent-containers/"
+--- scc-2.1.17/Cargo.toml	1970-01-01T00:00:01+00:00
++++ scc-2.1.17/Cargo.toml	2024-09-18T15:04:47.778041+00:00
+@@ -43,44 +43,12 @@
+ name = "scc"
+ path = "src/lib.rs"
  
 -[[bench]]
 -name = "bag"
+-path = "benches/bag.rs"
 -harness = false
 -
 -[[bench]]
--name = "hash_map"
+-name = "hash_cache"
+-path = "benches/hash_cache.rs"
 -harness = false
 -
 -[[bench]]
 -name = "hash_index"
+-path = "benches/hash_index.rs"
 -harness = false
 -
 -[[bench]]
--name = "hash_cache"
+-name = "hash_map"
+-path = "benches/hash_map.rs"
 -harness = false
 -
 -[[bench]]
 -name = "tree_index"
+-path = "benches/tree_index.rs"
 -harness = false
+-
+-[dependencies.loom]
+-version = "0.7"
+-optional = true
 -
  [dependencies.sdd]
- version = "2.1.0"
+ version = "3.0"
  
  [dependencies.serde]
  version = "1.0"
@@ -36,3 +45,13 @@
  
  [dev-dependencies.futures]
  version = "0.3"
+@@ -100,9 +68,3 @@
+ [dev-dependencies.tokio]
+ version = "1.40"
+ features = ["full"]
+-
+-[features]
+-loom = [
+-    "dep:loom",
+-    "sdd/loom",
+-]
diff --git a/sources b/sources
index 40783b9..257ce61 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (scc-2.1.6.crate) = fc26b41ad03f91d7cdfaf77babaf096417b205b715df8928b5141240db60b65155cdd6c207bf5763157b2a2cd3c70c677c37dcd0c6cba274a310e16b5040cf33
+SHA512 (scc-2.1.17.crate) = 548a77ca67a7e49a3b7b29a0339da9bccd42d6be23be4b4b3134613bd23a37629ab12cd669a7fbac1d9403446476a778bcb608d7ed1e6d0126a7d241a9496fdf