diff --git a/Cargo.lock b/Cargo.lock
index 6953ffb..231595f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -235,7 +235,7 @@ dependencies = [
  "semver",
  "serde",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -587,7 +587,7 @@ dependencies = [
  "libdlpi-sys 0.1.0 (git+https://github.com/oxidecomputer/dlpi-sys?branch=main)",
  "num_enum 0.7.5",
  "pretty-hex",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
 ]
 
@@ -600,7 +600,7 @@ dependencies = [
  "libdlpi-sys 0.1.0 (git+https://github.com/oxidecomputer/dlpi-sys)",
  "num_enum 0.7.5",
  "pretty-hex",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -1444,7 +1444,7 @@ dependencies = [
  "rand 0.9.2",
  "rusty-doors",
  "socket2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tracing",
  "winnow 0.7.14",
 ]
@@ -2649,7 +2649,7 @@ checksum = "297f631f50729c8c99b84667867963997ec0b50f32b2a7dbcab828ef0541e8bb"
 dependencies = [
  "num-bigint",
  "num-traits",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "time",
 ]
 
@@ -2823,7 +2823,7 @@ dependencies = [
  "softnpu",
  "tar",
  "tempfile",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "toml",
  "zone 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2980,11 +2980,11 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
 dependencies = [
- "thiserror-impl 2.0.17",
+ "thiserror-impl 2.0.18",
 ]
 
 [[package]]
@@ -3000,9 +3000,9 @@ dependencies = [
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 4444ae7..6bd0297 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,7 +34,7 @@ libnet = { git = "https://github.com/oxidecomputer/netadm-sys", branch = "main"
 p4rs = { git = "https://github.com/oxidecomputer/p4", branch = "main" }
 sha256 = "1.6.0"
 camino = "1.2.2"
-thiserror = "2.0.17"
+thiserror = "2.0.18"
 flate2 = "1.0"
 tar = "0.4"
 fs_extra = "1.3"