diff --git a/Cargo.lock b/Cargo.lock
index 44e74a21..ac158c16 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -862,7 +862,7 @@ dependencies = [
  "bit-set 0.8.0",
  "ena",
  "itertools",
- "lalrpop-util",
+ "lalrpop-util 0.22.2",
  "petgraph",
  "pico-args",
  "regex",
@@ -884,6 +884,15 @@ dependencies = [
  "rustversion",
 ]
 
+[[package]]
+name = "lalrpop-util"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "884f3e747ed2dcee867cda1b0c31a048f9e20de2d916a248949319921a2e666e"
+dependencies = [
+ "regex-automata",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -1370,7 +1379,7 @@ dependencies = [
  "codespan-reporting",
  "indexmap",
  "lalrpop",
- "lalrpop-util",
+ "lalrpop-util 0.23.1",
  "num-traits",
  "planus-lexer",
  "planus-types",
@@ -1383,7 +1392,7 @@ version = "1.3.0"
 dependencies = [
  "codespan",
  "indexmap",
- "lalrpop-util",
+ "lalrpop-util 0.23.1",
  "planus-lexer",
  "string-interner",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 4ea33613..36848aa6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ hashbrown = "0.16.1"
 heck = "0.5.0"
 indexmap = "2.13.0"
 lalrpop = "0.22.2"
-lalrpop-util = "0.22.2"
+lalrpop-util = "0.23.1"
 logos = "0.16.0"
 num-traits = "0.2.19"
 rand = "0.9.2"