diff --git a/Cargo.lock b/Cargo.lock
index d6d18e8d..16b2ae61 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -117,9 +117,9 @@ version = "0.3.1"
 
 [[package]]
 name = "prettyplease"
-version = "0.2.16"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a41cf62165e97c7f814d2221421dbb9afcbcdb0a88068e5ea206e19951c2cbb5"
+checksum = "5ac2cf0f2e4f42b49f5ffd07dae8d746508ef7526c13940e5f524012ae6c6550"
 dependencies = [
  "proc-macro2",
  "syn",
@@ -127,9 +127,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.78"
+version = "1.0.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
+checksum = "a56dea16b0a29e94408b9aa5e2940a4eedbd128a1ba20e8f7ae60fd3d465af0e"
 dependencies = [
  "unicode-ident",
 ]
@@ -182,9 +182,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.52"
+version = "2.0.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b699d15b36d1f02c3e7c69f8ffef53de37aefae075d8488d4ba1a7788d574a07"
+checksum = "4a6531ffc7b071655e4ce2e04bd464c4830bb585a61cabb96cf808f05172615a"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/fiat-constify/Cargo.toml b/fiat-constify/Cargo.toml
index 90102106..8fd03147 100644
--- a/fiat-constify/Cargo.toml
+++ b/fiat-constify/Cargo.toml
@@ -15,7 +15,7 @@ readme = "README.md"
 edition = "2021"
 
 [dependencies]
-prettyplease = "0.2.15"
+prettyplease = "0.2.19"
 proc-macro2 = "1"
 quote = "1"
 syn = { version = "2", features = ["extra-traits", "full"] }