diff --git a/crates/irtt-client/Cargo.toml b/crates/irtt-client/Cargo.toml
index 9682378..b62325f 100644
--- a/crates/irtt-client/Cargo.toml
+++ b/crates/irtt-client/Cargo.toml
@@ -15,7 +15,7 @@ categories = ["network-programming"]
 irtt-proto.workspace = true
 libc = { version = "0.2", optional = true }
 socket2 = { version = "0.6", features = ["all"] }
-thiserror = "2"
+thiserror = "2.0.18"
 
 [features]
 default = []
diff --git a/crates/irtt-proto/Cargo.toml b/crates/irtt-proto/Cargo.toml
index 8c0d22f..e7532fd 100644
--- a/crates/irtt-proto/Cargo.toml
+++ b/crates/irtt-proto/Cargo.toml
@@ -15,4 +15,4 @@ categories = ["network-programming"]
 hmac = "0.13"
 md-5 = "0.11"
 subtle = "2.6.1"
-thiserror = "2"
+thiserror = "2.0.18"