diff --git a/.changeset/wise-glasses-deliver.md b/.changeset/wise-glasses-deliver.md
new file mode 100644
index 000000000..a8efa6b7c
--- /dev/null
+++ b/.changeset/wise-glasses-deliver.md
@@ -0,0 +1,30 @@
+---
+"@kosko/build-scripts": patch
+"@kosko/jest-preset": patch
+"@kosko/jest-serializer-path": patch
+"@kosko/test-utils": patch
+"@kosko/cli": patch
+"@kosko/cli-utils": patch
+"@kosko/common-utils": patch
+"@kosko/config": patch
+"create-kosko": patch
+"@kosko/env": patch
+"@kosko/exec-utils": patch
+"@kosko/generate": patch
+"@kosko/helm": patch
+"kosko": patch
+"@kosko/kustomize": patch
+"@kosko/log": patch
+"@kosko/migrate": patch
+"@kosko/plugin": patch
+"@kosko/require": patch
+"@kosko/template": patch
+"@kosko/template-deployed-service": patch
+"@kosko/template-environment": patch
+"@kosko/yaml": patch
+"@kosko/plugin-lint": patch
+"@kosko/plugin-set-metadata": patch
+"@kosko/website": patch
+---
+
+Remove `.d.mts` files because their contents are as same as `.d.ts` files.
diff --git a/internal/jest-serializer-path/package.json b/internal/jest-serializer-path/package.json
index 41295b154..d48bb31a9 100644
--- a/internal/jest-serializer-path/package.json
+++ b/internal/jest-serializer-path/package.json
@@ -14,17 +14,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/internal/test-utils/package.json b/internal/test-utils/package.json
index 62e0360e1..08ded33d8 100644
--- a/internal/test-utils/package.json
+++ b/internal/test-utils/package.json
@@ -14,17 +14,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/cli-utils/package.json b/packages/cli-utils/package.json
index 9fbf83dd0..c98371f24 100644
--- a/packages/cli-utils/package.json
+++ b/packages/cli-utils/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 9e3df5fcc..ff3edc849 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -24,17 +24,11 @@
     "./bin/kosko.js": "./bin/kosko.js",
     ".": {
       "node": {
-        "import": {
-          "types": "./dist/index.d.mts",
-          "default": "./dist/index.node.mjs"
-        },
+        "import": "./dist/index.node.mjs",
         "types": "./dist/index.d.ts",
         "require": "./dist/index.node.cjs"
       },
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.base.mjs"
-      },
+      "import": "./dist/index.base.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     }
diff --git a/packages/common-utils/package.json b/packages/common-utils/package.json
index db76c70fc..fc5faf3c7 100644
--- a/packages/common-utils/package.json
+++ b/packages/common-utils/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/config/package.json b/packages/config/package.json
index 987df73b1..96c212cd2 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/create-kosko/package.json b/packages/create-kosko/package.json
index c057d6a9d..e8c23a870 100644
--- a/packages/create-kosko/package.json
+++ b/packages/create-kosko/package.json
@@ -20,17 +20,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/env/package.json b/packages/env/package.json
index c6860b4ed..81552fcdd 100644
--- a/packages/env/package.json
+++ b/packages/env/package.json
@@ -20,17 +20,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./index.node.cjs"
   },
diff --git a/packages/exec-utils/package.json b/packages/exec-utils/package.json
index b37e9fa48..23c2f244c 100644
--- a/packages/exec-utils/package.json
+++ b/packages/exec-utils/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/generate/package.json b/packages/generate/package.json
index 9e330463c..d8517d096 100644
--- a/packages/generate/package.json
+++ b/packages/generate/package.json
@@ -20,17 +20,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/helm/package.json b/packages/helm/package.json
index e6d38b2f1..ec183ab4c 100644
--- a/packages/helm/package.json
+++ b/packages/helm/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/kustomize/package.json b/packages/kustomize/package.json
index e2d40410d..472c99878 100644
--- a/packages/kustomize/package.json
+++ b/packages/kustomize/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/log/package.json b/packages/log/package.json
index 83204be0b..b3c52fb92 100644
--- a/packages/log/package.json
+++ b/packages/log/package.json
@@ -20,17 +20,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/migrate/package.json b/packages/migrate/package.json
index a5f69c108..01c449d71 100644
--- a/packages/migrate/package.json
+++ b/packages/migrate/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/plugin/package.json b/packages/plugin/package.json
index f3789211a..8f265160d 100644
--- a/packages/plugin/package.json
+++ b/packages/plugin/package.json
@@ -20,17 +20,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/require/package.json b/packages/require/package.json
index ff3186bfe..c1a411256 100644
--- a/packages/require/package.json
+++ b/packages/require/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/template-deployed-service/package.json b/packages/template-deployed-service/package.json
index bd15d7bb2..33c2ac9dc 100644
--- a/packages/template-deployed-service/package.json
+++ b/packages/template-deployed-service/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/template-environment/package.json b/packages/template-environment/package.json
index 5a0dfe4d8..1e58037e4 100644
--- a/packages/template-environment/package.json
+++ b/packages/template-environment/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/template/package.json b/packages/template/package.json
index 5c823c499..69dcbb254 100644
--- a/packages/template/package.json
+++ b/packages/template/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/packages/yaml/package.json b/packages/yaml/package.json
index 054cd888b..0124a3cf7 100644
--- a/packages/yaml/package.json
+++ b/packages/yaml/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },
diff --git a/plugins/lint/package.json b/plugins/lint/package.json
index 48d9e4c5a..4ade57dd7 100644
--- a/plugins/lint/package.json
+++ b/plugins/lint/package.json
@@ -27,17 +27,11 @@
     },
     ".": {
       "node": {
-        "import": {
-          "types": "./dist/index.d.mts",
-          "default": "./dist/index.node.mjs"
-        },
+        "import": "./dist/index.node.mjs",
         "types": "./dist/index.d.ts",
         "require": "./dist/index.node.cjs"
       },
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.base.mjs"
-      },
+      "import": "./dist/index.base.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     }
diff --git a/plugins/set-metadata/package.json b/plugins/set-metadata/package.json
index f44979cea..067e3fe88 100644
--- a/plugins/set-metadata/package.json
+++ b/plugins/set-metadata/package.json
@@ -19,17 +19,11 @@
   },
   "exports": {
     "node": {
-      "import": {
-        "types": "./dist/index.d.mts",
-        "default": "./dist/index.node.mjs"
-      },
+      "import": "./dist/index.node.mjs",
       "types": "./dist/index.d.ts",
       "require": "./dist/index.node.cjs"
     },
-    "import": {
-      "types": "./dist/index.d.mts",
-      "default": "./dist/index.base.mjs"
-    },
+    "import": "./dist/index.base.mjs",
     "types": "./dist/index.d.ts",
     "require": "./dist/index.node.cjs"
   },