diff --git a/.changeset/yellow-dots-add.md b/.changeset/yellow-dots-add.md
new file mode 100644
index 000000000..d13f9c28e
--- /dev/null
+++ b/.changeset/yellow-dots-add.md
@@ -0,0 +1,20 @@
+---
+"@kosko/aggregate-error": minor
+"@kosko/cli": minor
+"@kosko/common-utils": minor
+"@kosko/config": minor
+"@kosko/env": minor
+"@kosko/exec-utils": minor
+"@kosko/generate": minor
+"@kosko/helm": minor
+"@kosko/kustomize": minor
+"@kosko/log": minor
+"@kosko/migrate": minor
+"@kosko/require": minor
+"@kosko/template": minor
+"@kosko/template-deployed-service": minor
+"@kosko/template-environment": minor
+"@kosko/yaml": minor
+---
+
+Support TypeScript `nodenext` module resolution.
diff --git a/internal/build-scripts/bin/build-scripts.js b/internal/build-scripts/bin/build-scripts.js
index 097c79674..2d558f757 100755
--- a/internal/build-scripts/bin/build-scripts.js
+++ b/internal/build-scripts/bin/build-scripts.js
@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 // @ts-check
 
-import { mkdir, readFile, rm, unlink } from "node:fs/promises";
+import { copyFile, mkdir, readFile, rm, unlink } from "node:fs/promises";
 import { join, normalize } from "node:path";
 import { rollup } from "rollup";
 import nodeResolve from "@rollup/plugin-node-resolve";
@@ -149,6 +149,19 @@ async function runApiExtractor() {
   }
 }
 
+async function copyEsmDts() {
+  const paths = await globby("**/*.d.ts", {
+    cwd: join(cwd, "dist"),
+    absolute: true
+  });
+
+  for (const path of paths) {
+    const dst = path.replace(/\.d\.ts$/, ".d.mts");
+    console.log("Copying:", dst);
+    await copyFile(path, dst);
+  }
+}
+
 async function generatePack() {
   await execa("pnpm", ["pack", "--pack-destination", fullOutPath]);
 }
@@ -192,4 +205,5 @@ await Promise.all([
 await execa(tsc, ["--outDir", distDir]);
 await mkdir(fullOutPath, { recursive: true });
 await runApiExtractor();
+await copyEsmDts();
 await generatePack();
diff --git a/internal/jest-serializer-path/package.json b/internal/jest-serializer-path/package.json
index a1714e5d5..9afd884aa 100644
--- a/internal/jest-serializer-path/package.json
+++ b/internal/jest-serializer-path/package.json
@@ -14,11 +14,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "dependencies": {
diff --git a/internal/test-utils/package.json b/internal/test-utils/package.json
index 65088c508..b1c48f089 100644
--- a/internal/test-utils/package.json
+++ b/internal/test-utils/package.json
@@ -14,11 +14,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "dependencies": {
diff --git a/packages/aggregate-error/index.d.mts b/packages/aggregate-error/index.d.mts
new file mode 100644
index 000000000..b2a41529b
--- /dev/null
+++ b/packages/aggregate-error/index.d.mts
@@ -0,0 +1 @@
+export { AggregateError as default } from "./dist/index.d";
diff --git a/packages/aggregate-error/package.json b/packages/aggregate-error/package.json
index 789c60eca..490b70751 100644
--- a/packages/aggregate-error/package.json
+++ b/packages/aggregate-error/package.json
@@ -14,17 +14,25 @@
   "files": [
     "dist",
     "index.d.ts",
+    "index.d.mts",
     "index.browser.mjs",
     "index.node.cjs",
     "index.node.mjs"
   ],
   "exports": {
     "node": {
-      "import": "./index.node.mjs",
+      "import": {
+        "types": "./index.d.mts",
+        "default": "./index.node.mjs"
+      },
+      "types": "./index.d.ts",
       "require": "./index.node.cjs"
     },
+    "import": {
+      "types": "./index.d.mts",
+      "default": "./index.browser.mjs"
+    },
     "types": "./index.d.ts",
-    "import": "./index.browser.mjs",
     "require": "./index.node.cjs"
   },
   "scripts": {
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 162911d7f..4558d16e0 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -20,11 +20,18 @@
     "./bin/kosko.js": "./bin/kosko.js",
     ".": {
       "node": {
-        "import": "./dist/index.node.mjs",
+        "import": {
+          "types": "./dist/types.d.mts",
+          "default": "./dist/index.node.mjs"
+        },
+        "types": "./dist/types.d.ts",
         "require": "./dist/index.node.cjs"
       },
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.base.mjs"
+      },
       "types": "./dist/types.d.ts",
-      "import": "./dist/index.base.mjs",
       "require": "./dist/index.node.cjs"
     }
   },
diff --git a/packages/common-utils/package.json b/packages/common-utils/package.json
index 8afb41e36..1f7d02379 100644
--- a/packages/common-utils/package.json
+++ b/packages/common-utils/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/config/package.json b/packages/config/package.json
index 2931837bc..ba5a36144 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/env/package.json b/packages/env/package.json
index 82b74b24b..bcd86ef81 100644
--- a/packages/env/package.json
+++ b/packages/env/package.json
@@ -16,11 +16,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./index.node.cjs"
   },
   "files": [
diff --git a/packages/exec-utils/package.json b/packages/exec-utils/package.json
index ae621bf83..27ab67ea0 100644
--- a/packages/exec-utils/package.json
+++ b/packages/exec-utils/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/generate/package.json b/packages/generate/package.json
index 2b27462a2..506a372b4 100644
--- a/packages/generate/package.json
+++ b/packages/generate/package.json
@@ -16,11 +16,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/helm/package.json b/packages/helm/package.json
index 53143d059..edfbbc0ed 100644
--- a/packages/helm/package.json
+++ b/packages/helm/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/kustomize/package.json b/packages/kustomize/package.json
index aa87ed220..e05e6a91c 100644
--- a/packages/kustomize/package.json
+++ b/packages/kustomize/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/log/package.json b/packages/log/package.json
index c7a393de4..a893254bc 100644
--- a/packages/log/package.json
+++ b/packages/log/package.json
@@ -16,11 +16,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/migrate/package.json b/packages/migrate/package.json
index 3faedb20d..86de7312c 100644
--- a/packages/migrate/package.json
+++ b/packages/migrate/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/require/package.json b/packages/require/package.json
index 7e572e4a1..ae076f167 100644
--- a/packages/require/package.json
+++ b/packages/require/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/template-deployed-service/package.json b/packages/template-deployed-service/package.json
index de4973e93..0638ee13b 100644
--- a/packages/template-deployed-service/package.json
+++ b/packages/template-deployed-service/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "bin": {
diff --git a/packages/template-environment/package.json b/packages/template-environment/package.json
index 8579bf0d1..877e78819 100644
--- a/packages/template-environment/package.json
+++ b/packages/template-environment/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "bin": {
diff --git a/packages/template/package.json b/packages/template/package.json
index 488528bab..894c78871 100644
--- a/packages/template/package.json
+++ b/packages/template/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [
diff --git a/packages/yaml/package.json b/packages/yaml/package.json
index 3c448ef39..19e28c217 100644
--- a/packages/yaml/package.json
+++ b/packages/yaml/package.json
@@ -15,11 +15,18 @@
   },
   "exports": {
     "node": {
-      "import": "./dist/index.node.mjs",
+      "import": {
+        "types": "./dist/types.d.mts",
+        "default": "./dist/index.node.mjs"
+      },
+      "types": "./dist/types.d.ts",
       "require": "./dist/index.node.cjs"
     },
+    "import": {
+      "types": "./dist/types.d.mts",
+      "default": "./dist/index.base.mjs"
+    },
     "types": "./dist/types.d.ts",
-    "import": "./dist/index.base.mjs",
     "require": "./dist/index.node.cjs"
   },
   "files": [