diff --git a/Cargo.lock b/Cargo.lock
index 8b10dd41..3b30a30a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -75,10 +75,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
-name = "base64"
-version = "0.13.0"
+name = "base64-simd"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+checksum = "781dd20c3aff0bd194fe7d2a977dd92f21c173891f3a03b677359e5fa457e5d5"
+dependencies = [
+ "simd-abstraction",
+]
 
 [[package]]
 name = "bitflags"
@@ -882,6 +885,12 @@ version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
 
+[[package]]
+name = "outref"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f222829ae9293e33a9f5e9f440c6760a3d450a64affe1846486b140db81c1f4"
+
 [[package]]
 name = "parcel_selectors"
 version = "0.24.6"
@@ -899,11 +908,11 @@ dependencies = [
 
 [[package]]
 name = "parcel_sourcemap"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3316de6c35241a6c95fde81b37ed5f84cd75094015d0208a1a6fdb5868ed9917"
+checksum = "485b74d7218068b2b7c0e3ff12fbc61ae11d57cb5d8224f525bd304c6be05bbb"
 dependencies = [
- "base64",
+ "base64-simd",
  "data-url",
  "rkyv",
  "serde",
@@ -1383,6 +1392,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "simd-abstraction"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49d3f0728c33eb35102d2489a6a13dbbb510b07864b854e961b9e4b9cd011c61"
+dependencies = [
+ "outref",
+]
+
 [[package]]
 name = "siphasher"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index 85c0d15f..4a3b109a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,7 +32,7 @@ parcel_selectors = { version = "0.24.6", path = "./selectors" }
 itertools = "0.10.1"
 smallvec = { version = "1.7.0", features = ["union"] }
 bitflags = "1.3.2"
-parcel_sourcemap = { version = "2.1.0", features = ["json"] }
+parcel_sourcemap = { version = "2.1.1", features = ["json"] }
 data-encoding = "2.3.2"
 lazy_static = "1.4.0"
 const-str = "0.3.1"
diff --git a/c/Cargo.toml b/c/Cargo.toml
index cb29454f..517e4c21 100644
--- a/c/Cargo.toml
+++ b/c/Cargo.toml
@@ -10,7 +10,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 lightningcss = { path = "../", features = ["browserslist"] }
-parcel_sourcemap = { version = "2.1.0", features = ["json"] }
+parcel_sourcemap = { version = "2.1.1", features = ["json"] }
 browserslist-rs = { version = "0.7.0" }
 
 [build-dependencies]
diff --git a/node/Cargo.toml b/node/Cargo.toml
index 2a924ea7..0cbfd14a 100644
--- a/node/Cargo.toml
+++ b/node/Cargo.toml
@@ -13,7 +13,7 @@ serde = { version = "1.0.123", features = ["derive"] }
 serde_bytes = "0.11.5"
 cssparser = "0.29.1"
 lightningcss = { path = "../" }
-parcel_sourcemap = { version = "2.1.0", features = ["json"] }
+parcel_sourcemap = { version = "2.1.1", features = ["json"] }
 
 [target.'cfg(target_os = "macos")'.dependencies]
 jemallocator = { version = "0.3.2", features = ["disable_initial_exec_tls"] }