diff --git a/suppressions.txt b/suppressions.txt
index e3400670..1f4eb1ef 100644
--- a/suppressions.txt
+++ b/suppressions.txt
@@ -1,2 +1,7 @@
 race:std::panic::catch_unwind
 race:std::thread::scope
+
+# std::thread::spawn false positive; seen on Ubuntu 20.04 but not on Arch Linux (2022-04-29)
+race:drop_in_place*JoinHandle
+race:alloc::sync::Arc<*>::drop_slow
+race:__call_tls_dtors