diff --git a/divviup/rust/Cargo.lock b/divviup/rust/Cargo.lock
index 7846d44..49fe07e 100644
--- a/divviup/rust/Cargo.lock
+++ b/divviup/rust/Cargo.lock
@@ -547,7 +547,7 @@ dependencies = [
  "jni",
  "prio",
  "rand 0.10.3",
- "thiserror 2.0.20",
+ "thiserror 2.0.21",
 ]
 
 [[package]]
@@ -1302,7 +1302,7 @@ dependencies = [
  "reqwest",
  "serde",
  "serde_yaml",
- "thiserror 2.0.20",
+ "thiserror 2.0.21",
  "tokio",
  "tracing",
  "trillium",
@@ -1323,7 +1323,7 @@ dependencies = [
  "prio",
  "rand 0.8.5",
  "serde",
- "thiserror 2.0.20",
+ "thiserror 2.0.21",
  "url",
 ]
 
@@ -1339,7 +1339,7 @@ dependencies = [
  "jni-sys",
  "log",
  "simd_cesu8",
- "thiserror 2.0.20",
+ "thiserror 2.0.21",
  "walkdir",
  "windows-link 0.2.0",
 ]
@@ -1683,7 +1683,7 @@ dependencies = [
  "sha2",
  "sha3",
  "subtle",
- "thiserror 2.0.20",
+ "thiserror 2.0.21",
 ]
 
 [[package]]
@@ -2318,11 +2318,11 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.20"
+version = "2.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec86235f5fcc2a73650310756d2ac5b138a5780bbbdfae3eeccec992c435ba4f"
+checksum = "09e52cb86a36cede5cb101bf8908837b3e4c6e5e59fe7fd85c23fb56200d189e"
 dependencies = [
- "thiserror-impl 2.0.20",
+ "thiserror-impl 2.0.21",
 ]
 
 [[package]]
@@ -2338,9 +2338,9 @@ dependencies = [
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.20"
+version = "2.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc04cd3e1236dd4a98afca4569f2deb3f120e5422a4023be2cb683f8486292af"
+checksum = "fe5197923287db20a58125f0bc85c062f7f2c892de97b18c356f9efb14b28524"
 dependencies = [
  "proc-macro2",
  "quote",