diff --git a/Cargo.lock b/Cargo.lock
index b3660c5a0a..74b18ec454 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -66,15 +66,6 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
 
-[[package]]
-name = "ansi_term"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "anstream"
 version = "0.6.20"
@@ -92,9 +83,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.11"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
+checksum = "5192cca8006f1fd4f7237516f40fa183bb07f8fbdfedaa0036de5ea9b0b45e78"
 
 [[package]]
 name = "anstyle-parse"
@@ -3489,7 +3480,7 @@ dependencies = [
 name = "nickel-lang-core"
 version = "0.15.0"
 dependencies = [
- "ansi_term",
+ "anstyle",
  "assert_matches",
  "bumpalo",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index 85d5968905..db4678e861 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ lsp-harness = { version = "0.1.0", path = "./lsp/lsp-harness" }
 # building) but flake.nix needs to be kept in sync.
 wasm-bindgen = "=0.2.100"
 
-ansi_term = "0.12"
+anstyle = "1.0.13"
 anyhow = "1.0.97"
 assert_cmd = "2.0.11"
 assert_matches = "1.5.0"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index ac18bcbdba..5d38ca3f14 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -23,7 +23,7 @@ bench = false
 default = ["markdown", "repl", "doc", "format"]
 clap = ["dep:clap"]
 markdown = ["dep:termimad"]
-repl = ["dep:rustyline", "dep:rustyline-derive", "dep:ansi_term"]
+repl = ["dep:rustyline", "dep:rustyline-derive", "dep:anstyle"]
 repl-wasm = ["dep:wasm-bindgen", "dep:js-sys", "dep:serde_repr", "dep:serde-wasm-bindgen"]
 doc = ["dep:comrak"]
 format = ["dep:topiary-core", "dep:topiary-queries", "dep:tree-sitter-nickel"]
@@ -63,7 +63,7 @@ unicode-segmentation.workspace = true
 indoc.workspace = true
 
 termimad = { workspace = true, optional = true }
-ansi_term = { workspace = true, optional = true }
+anstyle = { workspace = true, optional = true }
 
 rustyline = { workspace = true, optional = true}
 rustyline-derive = { workspace = true, optional = true }
diff --git a/core/src/repl/mod.rs b/core/src/repl/mod.rs
index 3bd16be258..2fef1a29f8 100644
--- a/core/src/repl/mod.rs
+++ b/core/src/repl/mod.rs
@@ -39,7 +39,7 @@ use crate::{
     term::Term,
 };
 #[cfg(feature = "repl")]
-use ansi_term::{Colour, Style};
+use anstyle::{AnsiColor, Style};
 #[cfg(feature = "repl")]
 use rustyline::validate::{ValidationContext, ValidationResult};
 
@@ -375,8 +375,8 @@ impl rustyline::highlight::Highlighter for InputParser {
         prompt: &'p str,
         _default: bool,
     ) -> std::borrow::Cow<'b, str> {
-        let style = Style::new().fg(Colour::Green);
-        std::borrow::Cow::Owned(style.paint(prompt).to_string())
+        let style = Style::new().fg_color(Some(AnsiColor::Green.into()));
+        std::borrow::Cow::Owned(format!("{style}{prompt}"))
     }
 }
 
diff --git a/core/src/repl/rustyline_frontend.rs b/core/src/repl/rustyline_frontend.rs
index 605115520c..c8ae833fde 100644
--- a/core/src/repl/rustyline_frontend.rs
+++ b/core/src/repl/rustyline_frontend.rs
@@ -5,7 +5,7 @@ use super::{command::Command, *};
 
 use crate::{error::report::ColorOpt, eval::cache::CacheImpl};
 
-use ansi_term::Style;
+use anstyle::Style;
 use rustyline::{error::ReadlineError, Config, EditMode, Editor};
 
 /// The config of rustyline's editor.
@@ -116,7 +116,7 @@ pub fn repl(histfile: Option<PathBuf>, color_opt: ColorOpt) -> Result<(), InitEr
                         Ok(())
                     }
                     Ok(Command::Exit) => {
-                        println!("{}", Style::new().bold().paint("Exiting"));
+                        println!("{}Exiting", Style::new().bold());
                         break Ok(());
                     }
                     Err(err) => Err(Error::from(err)),
@@ -136,7 +136,7 @@ pub fn repl(histfile: Option<PathBuf>, color_opt: ColorOpt) -> Result<(), InitEr
                 };
             }
             Err(ReadlineError::Eof) => {
-                println!("{}", Style::new().bold().paint("Ctrl+D. Exiting"));
+                println!("{}Ctrl+D. Exiting", Style::new().bold());
                 break Ok(());
             }
             Err(ReadlineError::Interrupted) => (),