diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index daacd26..3db845a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: ["1.64.0", stable]
+        toolchain: ["1.67.0", stable]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/Cargo.toml b/Cargo.toml
index d1d1b03..9a50a83 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name         = "esp-idf-part"
 version      = "0.4.1"
 authors      = ["Jesse Braham <jesse@beta7.io>"]
 edition      = "2021"
-rust-version = "1.64.0"
+rust-version = "1.67.0"
 description  = "A library for parsing and generating ESP-IDF partition tables"
 repository   = "https://github.com/esp-rs/esp-idf-part"
 license      = "MIT OR Apache-2.0"
diff --git a/README.md b/README.md
index e9c3633..0d14f81 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/esp-rs/esp-idf-part/ci.yml?label=CI&logo=github&style=flat-square)
 [![Crates.io](https://img.shields.io/crates/v/esp-idf-part?color=C96329&logo=Rust&style=flat-square)](https://crates.io/crates/esp-idf-part)
 [![docs.rs](https://img.shields.io/docsrs/esp-idf-part?color=C96329&logo=rust&style=flat-square)](https://docs.rs/esp-idf-part)
-![MSRV](https://img.shields.io/badge/MSRV-1.64-blue?style=flat-square)
+![MSRV](https://img.shields.io/badge/MSRV-1.67-blue?style=flat-square)
 ![Crates.io](https://img.shields.io/crates/l/esp-idf-part?style=flat-square)
 
 A library for parsing and generating ESP-IDF partition tables. Supports parsing from and generating to both CSV and binary formats.
diff --git a/src/partition/mod.rs b/src/partition/mod.rs
index 0616665..9f7d4da 100644
--- a/src/partition/mod.rs
+++ b/src/partition/mod.rs
@@ -248,11 +248,14 @@ pub enum DataType {
     Nvs       = 0x02,
     Coredump  = 0x03,
     NvsKeys   = 0x04,
+    #[serde(rename = "efuse")]
+    #[strum(serialize = "efuse")]
     EfuseEm   = 0x05,
     Undefined = 0x06,
     Esphttpd  = 0x80,
     Fat       = 0x81,
     Spiffs    = 0x82,
+    Littlefs  = 0x83,
 }
 
 /// A single partition definition