diff --git a/CHANGELOG.md b/CHANGELOG.md
index a3ba6ebc..99f48324 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Remove `quick_xml::Error` from the public API. [#332](https://github.com/jonhoo/inferno/pull/332)
+- Remove reliance on the `is_terminal` crate. [#301](https://github.com/jonhoo/inferno/pull/301)
 
 ### Removed
 
diff --git a/Cargo.lock b/Cargo.lock
index 18de8d44..89f47c2e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -467,7 +467,6 @@ dependencies = [
  "dashmap",
  "env_logger",
  "indexmap",
- "is-terminal",
  "itoa",
  "libflate",
  "log",
diff --git a/Cargo.toml b/Cargo.toml
index 4e7ead80..7987b039 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,6 @@ nameattr = ["indexmap"]
 
 [dependencies]
 ahash = "0.8"
-is-terminal = "0.4.3"
 crossbeam-utils = { version = "0.8", optional = true }
 crossbeam-channel = { version = "0.5", optional = true }
 dashmap = { version = "6.0.1", optional = true }
diff --git a/src/bin/diff-folded.rs b/src/bin/diff-folded.rs
index b9b4ab69..a5562675 100644
--- a/src/bin/diff-folded.rs
+++ b/src/bin/diff-folded.rs
@@ -1,10 +1,9 @@
-use std::io;
+use std::io::{self, IsTerminal};
 use std::path::PathBuf;
 
 use clap::{ArgAction, Parser};
 use env_logger::Env;
 use inferno::differential::{self, Options};
-use is_terminal::IsTerminal;
 
 #[derive(Debug, Parser)]
 #[clap(
diff --git a/src/bin/flamegraph.rs b/src/bin/flamegraph.rs
index f82cf076..2a73bbf6 100644
--- a/src/bin/flamegraph.rs
+++ b/src/bin/flamegraph.rs
@@ -1,4 +1,4 @@
-use std::io;
+use std::io::{self, IsTerminal};
 use std::path::{Path, PathBuf};
 
 use clap::builder::TypedValueParser;
@@ -11,7 +11,6 @@ use inferno::flamegraph::{self, defaults, Direction, Options, Palette, TextTrunc
 
 #[cfg(feature = "nameattr")]
 use inferno::flamegraph::FuncFrameAttrsMap;
-use is_terminal::IsTerminal;
 
 #[derive(Debug, Parser)]
 #[clap(name = "inferno-flamegraph", about)]
diff --git a/src/collapse/mod.rs b/src/collapse/mod.rs
index 37dc7561..79403264 100644
--- a/src/collapse/mod.rs
+++ b/src/collapse/mod.rs
@@ -67,15 +67,13 @@ pub mod vsprof;
 ///   [crate-level documentation]: ../../index.html
 pub mod ghcprof;
 
-use is_terminal::IsTerminal;
-
 // DEFAULT_NTHREADS is public because we use it in the help text of the binaries,
 // but it doesn't need to be exposed to library users, hence #[doc(hidden)].
 #[doc(hidden)]
 pub use self::common::DEFAULT_NTHREADS;
 
 use std::fs::File;
-use std::io;
+use std::io::{self, IsTerminal};
 use std::path::Path;
 
 use self::common::{CollapsePrivate, CAPACITY_READER};