diff --git a/Cargo.toml b/Cargo.toml
index 79915e8..468e619 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ name = "rustfft"
 version = "6.3.0"
 authors = ["Allen Welkie <allen.welkie at gmail>", "Elliott Mahler <join.together at gmail>"]
 edition = "2018"
+rust-version = "1.61"
 
 description = "High-performance FFT library written in pure Rust."
 documentation = "https://docs.rs/rustfft/"
@@ -58,5 +59,3 @@ libc = "=0.2.163"
 # it probably isn't wise to stay on an old version for a long time, but we'll have to upgrade MSRV to upgrade
 once_cell = "=1.20.2"
 
-[build-dependencies]
-version_check = "0.9"
diff --git a/build.rs b/build.rs
deleted file mode 100644
index 245a66a..0000000
--- a/build.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-extern crate version_check;
-
-static MIN_RUSTC: &str = "1.61.0";
-
-fn main() {
-    println!("cargo:rerun-if-changed=build.rs");
-    match version_check::is_min_version(MIN_RUSTC) {
-        Some(true) => {}
-        Some(false) => panic!(
-            "\n====\nUnsupported rustc version {}\nRustFFT needs at least {}\n====\n",
-            version_check::Version::read().unwrap(),
-            MIN_RUSTC
-        ),
-        None => panic!("Unable to determine rustc version."),
-    };
-}