diff --git a/cmd/crates/soroban-test/tests/fixtures/test-wasms/udt/Cargo.toml b/cmd/crates/soroban-test/tests/fixtures/test-wasms/udt/Cargo.toml
index 9764b6455..206284802 100644
--- a/cmd/crates/soroban-test/tests/fixtures/test-wasms/udt/Cargo.toml
+++ b/cmd/crates/soroban-test/tests/fixtures/test-wasms/udt/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Stellar Development Foundation <info@stellar.org>"]
 license = "Apache-2.0"
 edition = "2021"
 publish = false
-rust-version = "1.69"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib"]