diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a2b2e51..c68ac2f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -105,7 +105,7 @@ build-base-stable:
 
 build-base-msrv:
   extends: build-base-stable
-  image: "rust:1.54.0"
+  image: "rust:1.57.0"
   cache:
     key: msrv
     paths:
@@ -131,7 +131,7 @@ build-stable:
 build-msrv:
   extends: build-stable
   needs: ["build-base-msrv"]
-  image: "rust:1.54.0"
+  image: "rust:1.57.0"
   cache:
     key: msrv
     paths:
@@ -156,7 +156,7 @@ test-stable:
 
 test-msrv:
   extends: test-stable
-  image: "rust:1.54.0"
+  image: "rust:1.57.0"
   needs: ["build-msrv"]
   cache:
     key: msrv
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1ee55b..71e9029 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@ Dates are given in YYYY-MM-DD format - for example, the 15th of October 2021 is
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v0.6.0 - 2022-09-04
+### Changed
+- The Minimum Supported Rust Version (MSRV) is now **1.57.0**.
+- Update [`clap`] to v3.2.0
+- Update [`smartstring`] to v1.0 - this should (slightly) improve performance on 32-bit big endian architectures 
+  such as PowerPC
+
 ## v0.5.2 - 2022-05-02
 ### Added
 - Output now contains a reminder to use `fif --fix`
@@ -26,7 +33,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## v0.5.0 - 2022-01-01
 ### Changed
-- The Minimum Supported Rust Version (MSRV) is now **1.54.0**.
+- The Minimum Supported Rust Version (MSRV) is now **1.57.0**.
 - Updated [`new_mime_guess`] to 4.0.0
 - `--version` output now handles missing Git commit hashes, and specifies the target operating system
 ### Fixed
diff --git a/Cargo.lock b/Cargo.lock
index 986fa73..7cdadec 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -81,16 +81,16 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "3.1.18"
+version = "3.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2dbdf4bdacb33466e854ce889eee8dfd5729abf7ccd7664d0a2d60cd384440b"
+checksum = "23b71c3ce99b7611011217b366d923f1d0a7e07a92bb2dbf1e84508c673ca3bd"
 dependencies = [
  "atty",
  "bitflags",
  "clap_derive",
  "clap_lex",
  "indexmap",
- "lazy_static",
+ "once_cell",
  "termcolor",
  "terminal_size",
  "textwrap",
@@ -99,9 +99,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "3.1.18"
+version = "3.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25320346e922cffe59c0bbc5410c8d8784509efb321488971081313cb1e1a33c"
+checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -769,11 +769,13 @@ checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1"
 
 [[package]]
 name = "smartstring"
-version = "0.2.9"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31aa6a31c0c2b21327ce875f7e8952322acfcfd0c27569a6e18a647281352c9b"
+checksum = "3fb72c633efbaa2dd666986505016c32c3044395ceaf881518399d2f4127ee29"
 dependencies = [
+ "autocfg",
  "static_assertions",
+ "version_check",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index d5210d6..3fe6ff2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ version = "0.5.2"
 authors = ["Lynnesbian <lynne@bune.city>"]
 edition = "2018"
 license = "GPL-3.0-or-later"
-rust-version = "1.54.0" # clap 3 requires >=1.54.0
+rust-version = "1.57.0" # os_str_bytes requires >=1.57.0, numerous other deps require 2021 edition support
 repository = "https://gitlab.com/Lynnesbian/fif"
 readme = "README.md"
 keywords = ["mime", "mimetype", "utilities", "tools"]
@@ -38,6 +38,7 @@ serde_json = { version = "1.0", optional = true }
 num_cpus = { version = "1.13.0", optional = true }
 maplit = "1.0.2"
 parking_lot = "0.12.0"
+smartstring = "1"
 
 [target.'cfg(not(unix))'.dependencies]
 xdg-mime = { version = "0.3.3", optional = true }
@@ -47,20 +48,8 @@ infer = "0.9.0"
 xdg-mime = "0.3.3"
 infer = { version = "0.9.0", optional = true }
 
-[target.'cfg(not(all(target_endian = "big", target_pointer_width = "32")))'.dependencies]
-# the seemingly weird target constraint here is due to this:
-# https://github.com/bodil/smartstring/blob/v0.2.9/src/config.rs#L91-L93
-# essentially, smartstring is intentionally blocked from compiling on 32-bit big endian archs, so our dependency on it
-# needs to be too. otherwise, fif won't work on platforms like powerpc, even though this dependency is the only
-# blocker -- fif runs just fine on powerpc (or on my powerbook G4, anyway) without smartstring.
-
-# additionally, versions before 0.2.4 didn't impl Display, so we need at least that version for displaying Strings.
-# version 1.0 of smartstring adds 32-bit BE compatibility (by rewriting the implementation), but requires rust 1.57.0,
-# so we can't use it.
-smartstring = ">= 0.2.4, <=0.2.9"
-
 [dependencies.clap]
-version = "~3.1" # 3.2 requires rust 1.56.0
+version = "3.2"
 default-features = false
 features = ["wrap_help", "color", "derive", "std", "unicode"]
 
@@ -86,4 +75,4 @@ opt-level = 3
 opt-level = 3
 
 [package.metadata]
-msrv = "1.54.0"
+msrv = "1.57.0"
diff --git a/README.md b/README.md
index 15a67e7..c2d9349 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 [![Version](https://img.shields.io/crates/v/fif.svg?logo=rust&style=flat-square)
 ](https://crates.io/crates/fif)
-[![Minimum Supported Rust Version](https://img.shields.io/badge/msrv-1.54.0-orange?logo=rust&style=flat-square)
+[![Minimum Supported Rust Version](https://img.shields.io/badge/msrv-1.57.0-orange?logo=rust&style=flat-square)
 ](https://gitlab.com/Lynnesbian/fif/-/blob/master/README.md#version-policy)
 [![License](https://img.shields.io/crates/l/fif.svg?style=flat-square)
 ](https://gitlab.com/Lynnesbian/fif/-/blob/master/LICENSE)
diff --git a/clippy.toml b/clippy.toml
index b99c74f..0fd66aa 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1,3 +1,3 @@
 # avoid-breaking-exported-api = false # only available on nightly for now
 cognitive-complexity-threshold = 15
-msrv = "1.54.0"
+msrv = "1.57.0"
diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index e6f9b44..6232162 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -564,21 +564,3 @@ fn sort_findings() {
 	assert_eq!(findings.next().unwrap().file, Path::new("ccc"));
 	assert_eq!(findings.next(), None);
 }
-
-#[test]
-#[cfg(not(all(target_endian = "big", target_pointer_width = "32")))]
-/// Ensures that [`SmartString`]s don't deviate from std's Strings
-// remove this when (if) updating to smartstring v1.0!
-fn validate_string_type() {
-	use std::string::String as StdString;
-
-	use fif::String as SmartString;
-	assert_eq!(SmartString::new(), StdString::new());
-	assert_eq!(SmartString::from("smol"), StdString::from("smol"));
-	assert_eq!(
-		SmartString::from("A long and therefore heap-allocated string"),
-		StdString::from("A long and therefore heap-allocated string")
-	);
-
-	smartstring::validate();
-}