diff --git a/__tests__/fixtures/pyproject-toml-project/pyproject.toml b/__tests__/fixtures/pyproject-toml-project/pyproject.toml
index 55ad9ab..5bacb75 100644
--- a/__tests__/fixtures/pyproject-toml-project/pyproject.toml
+++ b/__tests__/fixtures/pyproject-toml-project/pyproject.toml
@@ -6,5 +6,14 @@ readme = "README.md"
 requires-python = ">=3.11"
 dependencies = []
 
+[dependency-groups]
+dev = [
+  "reuse==5.0.2",
+  {include-group = "lint"},
+]
+lint = [
+  "flake8==4.0.1",
+]
+
 [tool.uv]
 required-version = "==0.5.14"
diff --git a/dist/save-cache/index.js b/dist/save-cache/index.js
index 5f7403d..098a2d6 100644
Binary files a/dist/save-cache/index.js and b/dist/save-cache/index.js differ
diff --git a/dist/setup/index.js b/dist/setup/index.js
index f22218c..64098a3 100644
Binary files a/dist/setup/index.js and b/dist/setup/index.js differ
diff --git a/dist/update-known-checksums/index.js b/dist/update-known-checksums/index.js
index 743ec4a..92d2f32 100644
Binary files a/dist/update-known-checksums/index.js and b/dist/update-known-checksums/index.js differ
diff --git a/package-lock.json b/package-lock.json
index e080175..3fe0623 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,8 +16,8 @@
         "@actions/glob": "^0.5.0",
         "@actions/io": "^1.1.3",
         "@actions/tool-cache": "^2.0.1",
-        "@iarna/toml": "^2.2.5",
-        "@octokit/rest": "^21.1.0"
+        "@octokit/rest": "^21.1.0",
+        "smol-toml": "^1.3.1"
       },
       "devDependencies": {
         "@biomejs/biome": "1.9.4",
@@ -1105,11 +1105,6 @@
         "node": ">=14"
       }
     },
-    "node_modules/@iarna/toml": {
-      "version": "2.2.5",
-      "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
-      "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="
-    },
     "node_modules/@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -4577,6 +4572,17 @@
         "node": ">=8"
       }
     },
+    "node_modules/smol-toml": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/smol-toml/-/smol-toml-1.3.1.tgz",
+      "integrity": "sha512-tEYNll18pPKHroYSmLLrksq233j021G0giwW7P3D24jC54pQ5W5BXMsQ/Mvw1OJCmEYDgY+lrzT+3nNUtoNfXQ==",
+      "engines": {
+        "node": ">= 18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/cyyynthia"
+      }
+    },
     "node_modules/source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -5940,11 +5946,6 @@
       "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.0.tgz",
       "integrity": "sha512-+KpH+QxZU7O4675t3mnkQKcZZg56u+K/Ct2K+N2AZYNVK8kyeo/bI18tI8aPm3tvNNRyTWfj6s5tnGNlcbQRsA=="
     },
-    "@iarna/toml": {
-      "version": "2.2.5",
-      "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
-      "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="
-    },
     "@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -8607,6 +8608,11 @@
       "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==",
       "dev": true
     },
+    "smol-toml": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/smol-toml/-/smol-toml-1.3.1.tgz",
+      "integrity": "sha512-tEYNll18pPKHroYSmLLrksq233j021G0giwW7P3D24jC54pQ5W5BXMsQ/Mvw1OJCmEYDgY+lrzT+3nNUtoNfXQ=="
+    },
     "source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
diff --git a/package.json b/package.json
index b146b49..09f6bd2 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "@actions/io": "^1.1.3",
     "@actions/tool-cache": "^2.0.1",
     "@octokit/rest": "^21.1.0",
-    "@iarna/toml": "^2.2.5"
+    "smol-toml": "^1.3.1"
   },
   "devDependencies": {
     "@biomejs/biome": "1.9.4",
diff --git a/src/utils/pyproject.ts b/src/utils/pyproject.ts
index c727855..dca27e4 100644
--- a/src/utils/pyproject.ts
+++ b/src/utils/pyproject.ts
@@ -1,6 +1,6 @@
 import fs from "node:fs";
 import * as core from "@actions/core";
-import * as toml from "@iarna/toml";
+import * as toml from "smol-toml";
 
 export function getUvVersionFromConfigFile(
   filePath: string,
diff --git a/tsconfig.json b/tsconfig.json
index 4a6c661..d8d5291 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
+    "target": "ES2022" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "outDir": "./lib" /* Redirect output structure to the directory. */,
     "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,