diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 783b5052d..fb038d280 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -127,8 +127,8 @@ jobs:
       - uses: actions/checkout@master
       - name: Install Rust
         run: |
-          rustup update 1.31.0 --no-self-update
-          rustup default 1.31.0
+          rustup update 1.60.0 --no-self-update
+          rustup default 1.60.0
       - run: cargo build --verbose
       - run: cargo build --verbose --features serde
       - run: cargo build --verbose --features std
diff --git a/Cargo.toml b/Cargo.toml
index 909b29c0c..f4e944942 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,6 @@ A lightweight logging facade for Rust
 categories = ["development-tools::debugging"]
 keywords = ["logging"]
 exclude = ["rfcs/**/*"]
-build = "build.rs"
 
 [package.metadata.docs.rs]
 features = ["std", "serde", "kv_unstable_std", "kv_unstable_sval", "kv_unstable_serde"]
diff --git a/README.md b/README.md
index 5adff6bd7..41a1cb648 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ implementation that is most suitable for its use case.
 
 ## Minimum supported `rustc`
 
-`1.31.0+`
+`1.60.0+`
 
 This version is explicitly tested in CI and may be bumped in any release as needed. Maintaining compatibility with older compilers is a priority though, so the bar for bumping the minimum supported version is set very high. Any changes to the supported minimum version will be called out in the release notes.
 
diff --git a/build.rs b/build.rs
deleted file mode 100644
index 11c26a333..000000000
--- a/build.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-//! This build script detects target platforms that lack proper support for
-//! atomics and sets `cfg` flags accordingly.
-
-use std::env;
-use std::str;
-
-fn main() {
-    let target = match rustc_target() {
-        Some(target) => target,
-        None => return,
-    };
-
-    if target_has_atomic_cas(&target) {
-        println!("cargo:rustc-cfg=atomic_cas");
-    }
-
-    if target_has_atomics(&target) {
-        println!("cargo:rustc-cfg=has_atomics");
-    }
-
-    println!("cargo:rerun-if-changed=build.rs");
-}
-
-fn target_has_atomic_cas(target: &str) -> bool {
-    match target {
-        "thumbv6m-none-eabi"
-        | "msp430-none-elf"
-        | "riscv32i-unknown-none-elf"
-        | "riscv32imc-unknown-none-elf" => false,
-        _ => true,
-    }
-}
-
-fn target_has_atomics(target: &str) -> bool {
-    match target {
-        "thumbv4t-none-eabi"
-        | "msp430-none-elf"
-        | "riscv32i-unknown-none-elf"
-        | "riscv32imc-unknown-none-elf" => false,
-        _ => true,
-    }
-}
-
-fn rustc_target() -> Option<String> {
-    env::var("TARGET").ok()
-}
diff --git a/clippy.toml b/clippy.toml
index 3d30690f1..16caf02ee 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1 +1 @@
-msrv = "1.31.0"
+msrv = "1.60.0"
diff --git a/src/lib.rs b/src/lib.rs
index 732637801..0a710c77b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -342,20 +342,20 @@ mod serde;
 #[cfg(feature = "kv_unstable")]
 pub mod kv;
 
-#[cfg(has_atomics)]
+#[cfg(target_has_atomic = "ptr")]
 use std::sync::atomic::{AtomicUsize, Ordering};
 
-#[cfg(not(has_atomics))]
+#[cfg(not(target_has_atomic = "ptr"))]
 use std::cell::Cell;
-#[cfg(not(has_atomics))]
+#[cfg(not(target_has_atomic = "ptr"))]
 use std::sync::atomic::Ordering;
 
-#[cfg(not(has_atomics))]
+#[cfg(not(target_has_atomic = "ptr"))]
 struct AtomicUsize {
     v: Cell<usize>,
 }
 
-#[cfg(not(has_atomics))]
+#[cfg(not(target_has_atomic = "ptr"))]
 impl AtomicUsize {
     const fn new(v: usize) -> AtomicUsize {
         AtomicUsize { v: Cell::new(v) }
@@ -369,7 +369,7 @@ impl AtomicUsize {
         self.v.set(val)
     }
 
-    #[cfg(atomic_cas)]
+    #[cfg(target_has_atomic = "ptr")]
     fn compare_exchange(
         &self,
         current: usize,
@@ -387,7 +387,7 @@ impl AtomicUsize {
 
 // Any platform without atomics is unlikely to have multiple cores, so
 // writing via Cell will not be a race condition.
-#[cfg(not(has_atomics))]
+#[cfg(not(target_has_atomic = "ptr"))]
 unsafe impl Sync for AtomicUsize {}
 
 // The LOGGER static holds a pointer to the global logger. It is protected by
@@ -1256,7 +1256,7 @@ pub fn max_level() -> LevelFilter {
 /// An error is returned if a logger has already been set.
 ///
 /// [`set_logger`]: fn.set_logger.html
-#[cfg(all(feature = "std", atomic_cas))]
+#[cfg(all(feature = "std", target_has_atomic = "ptr"))]
 pub fn set_boxed_logger(logger: Box<dyn Log>) -> Result<(), SetLoggerError> {
     set_logger_inner(|| Box::leak(logger))
 }
@@ -1314,12 +1314,12 @@ pub fn set_boxed_logger(logger: Box<dyn Log>) -> Result<(), SetLoggerError> {
 /// ```
 ///
 /// [`set_logger_racy`]: fn.set_logger_racy.html
-#[cfg(atomic_cas)]
+#[cfg(target_has_atomic = "ptr")]
 pub fn set_logger(logger: &'static dyn Log) -> Result<(), SetLoggerError> {
     set_logger_inner(|| logger)
 }
 
-#[cfg(atomic_cas)]
+#[cfg(target_has_atomic = "ptr")]
 fn set_logger_inner<F>(make_logger: F) -> Result<(), SetLoggerError>
 where
     F: FnOnce() -> &'static dyn Log,