diff --git a/Cargo.lock b/Cargo.lock
index 82e99df..9d2e2d7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,17 +1,55 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
-name = "ahash"
-version = "0.8.2"
+name = "anstream"
+version = "0.6.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf6ccdb167abbf410dcb915cabd428929d7f6a04980b54a11f26a39f1c7f7107"
+checksum = "301af1932e46185686725e0fad2f8f2aa7da69dd70bf6ecc44d6b703844a3933"
 dependencies = [
- "cfg-if",
- "getrandom",
- "once_cell",
- "version_check",
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8bdeb6047d8983be085bab0ba1472e6dc604e7041dbf6fcd5e71523014fae9"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "403f75924867bb1033c59fbf0797484329750cfbe3c4325cd33127941fabc882"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys",
 ]
 
 [[package]]
@@ -26,40 +64,34 @@ dependencies = [
 ]
 
 [[package]]
-name = "bitflags"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
+name = "clap"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "40b6887a1d8685cebccf115538db5c0efe625ccac9696ad45c409d96566e910f"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
 
 [[package]]
-name = "clap"
-version = "4.0.26"
+name = "clap_builder"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2148adefda54e14492fb9bddcc600b4344c5d1a3123bd666dcb939c6f0e0e57e"
+checksum = "e0c66c08ce9f0c698cbce5c0279d0bb6ac936d8674174fe48f736533b964f59e"
 dependencies = [
- "atty",
- "bitflags",
- "clap_derive",
+ "anstream",
+ "anstyle",
  "clap_lex",
- "once_cell",
  "strsim",
- "termcolor",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "4.0.21"
+version = "4.5.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
+checksum = "d2c7947ae4cc3d851207c1adb5b5e260ff0cca11446b1d6d1423788e442257ce"
 dependencies = [
  "heck",
- "proc-macro-error",
  "proc-macro2",
  "quote",
  "syn",
@@ -67,41 +99,42 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.3.0"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
-dependencies = [
- "os_str_bytes",
-]
+checksum = "b94f61472cee1439c0b966b47e3aca9ae07e45d070759512cd390ea2bebc6675"
 
 [[package]]
-name = "getrandom"
-version = "0.2.8"
+name = "colorchoice"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
-dependencies = [
- "cfg-if",
- "libc",
- "wasi",
-]
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
+
+[[package]]
+name = "foldhash"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
 
 [[package]]
 name = "glob"
-version = "0.3.0"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+checksum = "a8d1add55171497b4705a648c6b583acafb01d58050a51727785f0b2c8e0a2b2"
 
 [[package]]
 name = "hashbrown"
-version = "0.12.3"
+version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+checksum = "5971ac85611da7067dbfcabef3c70ebb5606018acd9e2a3903a0da507521e0d5"
+dependencies = [
+ "foldhash",
+]
 
 [[package]]
 name = "heck"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "hermit-abi"
@@ -114,14 +147,20 @@ dependencies = [
 
 [[package]]
 name = "imara-diff"
-version = "0.1.5"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e98c1d0ad70fc91b8b9654b1f33db55e59579d3b3de2bffdced0fdb810570cb8"
+checksum = "2f01d462f766df78ab820dd06f5eb700233c51f0f4c2e846520eaf4ba6aa5c5c"
 dependencies = [
- "ahash",
  "hashbrown",
+ "memchr",
 ]
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "libc"
 version = "0.2.137"
@@ -139,102 +178,63 @@ dependencies = [
 ]
 
 [[package]]
-name = "once_cell"
-version = "1.16.0"
+name = "memchr"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
-name = "os_str_bytes"
-version = "6.4.0"
+name = "once_cell_polyfill"
+version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b5bf27447411e9ee3ff51186bf7a08e16c341efdde93f4d823e8844429bed7e"
-
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
+checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.47"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.21"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "strsim"
-version = "0.10.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "1.0.103"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
  "unicode-ident",
 ]
 
-[[package]]
-name = "termcolor"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
-dependencies = [
- "winapi-util",
-]
-
 [[package]]
 name = "unicode-ident"
-version = "1.0.5"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
 [[package]]
-name = "version_check"
-version = "0.9.4"
+name = "utf8parse"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
-
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "winapi"
@@ -253,16 +253,80 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
-name = "winapi-util"
-version = "0.1.5"
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "winapi",
+ "windows-targets",
 ]
 
 [[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
+name = "windows-targets"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
diff --git a/Cargo.toml b/Cargo.toml
index 3920b42..8663c1d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -107,6 +107,6 @@ path = "exercises/12_hygienic_macros/solutions/main.rs"
 
 [dependencies]
 atty = "0.2.14"
-clap = { version = "4.0.26", features = ["derive"] }
-imara-diff = "0.1.5"
-glob = "0.3.0"
+clap = { version = "4.5.40", features = ["derive"] }
+imara-diff = "0.2.0"
+glob = "0.3.2"
diff --git a/src/check.rs b/src/check.rs
index 1ec979a..64c90cf 100644
--- a/src/check.rs
+++ b/src/check.rs
@@ -1,6 +1,5 @@
+use crate::diff::diff;
 use glob::glob;
-use imara_diff::intern::InternedInput;
-use imara_diff::{diff, Algorithm, UnifiedDiffBuilder};
 use std::path::PathBuf;
 use std::process::{Command, Output};
 
@@ -72,12 +71,7 @@ pub fn check(exercise: &str) -> Result<(), CheckError> {
     let exercise_diff = std::fs::read_to_string(exercise_diff_path)
         .map_err(|_| CheckError::DiffFileDoesNotExist)?;
 
-    let input = InternedInput::new::<&str>(exercise_main.as_ref(), exercise_solution.as_ref());
-    let actual_diff = diff(
-        Algorithm::Histogram,
-        &input,
-        UnifiedDiffBuilder::new(&input),
-    );
+    let actual_diff = diff(exercise_main.as_ref(), exercise_solution.as_ref());
 
     if actual_diff == exercise_diff {
         let clippy = run_cargo_command(exercise, "clippy")
diff --git a/src/diff.rs b/src/diff.rs
new file mode 100644
index 0000000..40b3e8d
--- /dev/null
+++ b/src/diff.rs
@@ -0,0 +1,13 @@
+use imara_diff::{Algorithm, BasicLineDiffPrinter, Diff, InternedInput, UnifiedDiffConfig};
+
+pub fn diff(before: &str, after: &str) -> String {
+    let input = InternedInput::new(before, after);
+
+    Diff::compute(Algorithm::Histogram, &input)
+        .unified_diff(
+            &BasicLineDiffPrinter(&input.interner),
+            UnifiedDiffConfig::default(),
+            &input,
+        )
+        .to_string()
+}
diff --git a/src/main.rs b/src/main.rs
index f6884f3..644d526 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@ use clap::{Parser, Subcommand};
 use std::error::Error;
 
 mod check;
+mod diff;
 mod goal;
 mod test;
 mod update_diff;
diff --git a/src/test.rs b/src/test.rs
index 377514e..98c59ee 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -1,5 +1,4 @@
-use imara_diff::intern::InternedInput;
-use imara_diff::{diff, Algorithm, UnifiedDiffBuilder};
+use crate::diff::diff;
 use std::error::Error;
 use std::io::{self, Write};
 use std::process::Command;
@@ -59,12 +58,7 @@ pub fn test(exercise: String) -> Result<(), Box<dyn Error>> {
 
     let before = String::from_utf8_lossy(&main_output.stdout);
     let after = String::from_utf8_lossy(&soln_output.stdout);
-    let input = InternedInput::new(before.as_ref(), after.as_ref());
-    let the_diff = diff(
-        Algorithm::Histogram,
-        &input,
-        UnifiedDiffBuilder::new(&input),
-    );
+    let the_diff = diff(before.as_ref(), after.as_ref());
 
     if the_diff.is_empty() {
         println!("\nCongratulations! You solved it.\n");
diff --git a/src/update_diff.rs b/src/update_diff.rs
index 296a862..45bef0f 100644
--- a/src/update_diff.rs
+++ b/src/update_diff.rs
@@ -1,5 +1,4 @@
-use imara_diff::intern::InternedInput;
-use imara_diff::{diff, Algorithm, UnifiedDiffBuilder};
+use crate::diff::diff;
 use std::error::Error;
 use std::path::PathBuf;
 
@@ -28,12 +27,7 @@ pub fn update_diff(exercise: &str) -> Result<(), Box<dyn Error>> {
     let exercise_main = std::fs::read_to_string(exercise_main_path)?;
     let exercise_solution = std::fs::read_to_string(exercise_solution_path)?;
 
-    let input = InternedInput::new::<&str>(exercise_main.as_ref(), exercise_solution.as_ref());
-    let actual_diff = diff(
-        Algorithm::Histogram,
-        &input,
-        UnifiedDiffBuilder::new(&input),
-    );
+    let actual_diff = diff(exercise_main.as_ref(), exercise_solution.as_ref());
 
     let mut file = File::create(exercise_diff_path)?;
     file.write_all(actual_diff.as_bytes())?;