diff --git a/Cargo.lock b/Cargo.lock
index f88e1a5fd..6389fbd59 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1000,9 +1000,9 @@ dependencies = [
 
 [[package]]
 name = "pest_derive"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "502b62a6d0245378b04ffe0a7fb4f4419a4815fce813bd8a0ec89a56e07d67b1"
+checksum = "60b75706b9642ebcb34dab3bc7750f811609a0eb1dd8b88c2d15bf628c1c65b2"
 dependencies = [
  "pest",
  "pest_generator",
@@ -1010,9 +1010,9 @@ dependencies = [
 
 [[package]]
 name = "pest_generator"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "451e629bf49b750254da26132f1a5a9d11fd8a95a3df51d15c4abd1ba154cb6c"
+checksum = "f4f9272122f5979a6511a749af9db9bfc810393f63119970d7085fed1c4ea0db"
 dependencies = [
  "pest",
  "pest_meta",
@@ -1023,9 +1023,9 @@ dependencies = [
 
 [[package]]
 name = "pest_meta"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcec162c71c45e269dfc3fc2916eaeb97feab22993a21bcce4721d08cd7801a6"
+checksum = "4c8717927f9b79515e565a64fe46c38b8cd0427e64c40680b14a7365ab09ac8d"
 dependencies = [
  "once_cell",
  "pest",
diff --git a/Cargo.toml b/Cargo.toml
index 03f4ff482..07bbdd196 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,7 +48,7 @@ itertools = "0.10.5"
 jujutsu-lib = { version = "=0.4.0", path = "lib"}
 maplit = "1.0.2"
 pest = "2.4.0"
-pest_derive = "2.3"
+pest_derive = "2.4"
 rand = "0.8.5"
 regex = "1.6.0"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 221ca18f3..e0a0109eb 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -30,7 +30,7 @@ itertools = "0.10.5"
 maplit = "1.0.2"
 once_cell = "1.15.0"
 pest = "2.4.0"
-pest_derive = "2.3.1"
+pest_derive = "2.4.0"
 protobuf = { version = "3.0.1", features = ["with-bytes"] }
 rand = "0.8.5"
 regex = "1.6.0"