diff --git a/src/google-clasp/devcontainer-feature.json b/src/google-clasp/devcontainer-feature.json
index a23c733..010fa3a 100644
--- a/src/google-clasp/devcontainer-feature.json
+++ b/src/google-clasp/devcontainer-feature.json
@@ -2,19 +2,13 @@
   "name": "@google/clasp (via npm)",
   "id": "google-clasp",
   "version": "1.0.0",
-  "description": "Install the @google/clasp with @types/google-apps-script package via NPM registry",
+  "description": "Install the @google/clasp package via NPM registry",
   "options": {
     "version": {
       "type": "string",
       "proposals": ["latest"],
       "default": "latest",
       "description": "Select or enter a @google/clasp version."
-    },
-    "types": {
-      "type": "string",
-      "proposals": ["latest"],
-      "default": "latest",
-      "description": "Select or enter a @types/google-apps-script version(pass blank to not install)."
     }
   },
   "installsAfter": [
diff --git a/src/google-clasp/install.sh b/src/google-clasp/install.sh
index 38c4633..2bd4ff9 100644
--- a/src/google-clasp/install.sh
+++ b/src/google-clasp/install.sh
@@ -2,8 +2,6 @@
 
 TARGET_PACKAGE="@google/clasp"
 TARGET_VERSION=${VERSION:-"latest"}
-TARGET_TYPES_PACKAGE="@types/google-apps-script"
-TARGET_TYPES_VERSION=${TYPES:-"latest"}
 
 set -e
 
@@ -21,10 +19,6 @@ install_packages() {
 
   echo "Installing npm package: ${TARGET_PACKAGE}@${TARGET_VERSION}"
   npm install --global --omit=dev --no-progress --cache "${TEMP_CACHE}" "${TARGET_PACKAGE}@${TARGET_VERSION}"
-  if test "${TARGET_TYPES_PACKAGE}" != ""; then
-    echo "Installing npm package: ${TARGET_TYPES_PACKAGE}@${TARGET_TYPES_VERSION}"
-    npm install --global --omit=dev --no-progress --cache "${TEMP_CACHE}" "${TARGET_TYPES_PACKAGE}@${TARGET_TYPES_VERSION}"
-  fi
 }
 
 # Check if npm is installed
diff --git a/test/google-clasp/scenarios.json b/test/google-clasp/scenarios.json
index 180ef46..35abea6 100644
--- a/test/google-clasp/scenarios.json
+++ b/test/google-clasp/scenarios.json
@@ -14,37 +14,5 @@
       }
     },
     "remoteUser": "node"
-  },
-  "types_v1.0.0": {
-    "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
-    "features": {
-      "ghcr.io/devcontainers/features/common-utils:1": {
-        "installZsh": false,
-        "installOhMyZsh": false,
-        "upgradePackages": false,
-        "username": "node"
-      },
-      "ghcr.io/devcontainers/features/node:1": {},
-      "google-clasp": {
-        "types": "1.0.0"
-      }
-    },
-    "remoteUser": "node"
-  },
-  "types_none": {
-    "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
-    "features": {
-      "ghcr.io/devcontainers/features/common-utils:1": {
-        "installZsh": false,
-        "installOhMyZsh": false,
-        "upgradePackages": false,
-        "username": "node"
-      },
-      "ghcr.io/devcontainers/features/node:1": {},
-      "google-clasp": {
-        "types": ""
-      }
-    },
-    "remoteUser": "node"
   }
 }
diff --git a/test/google-clasp/test.sh b/test/google-clasp/test.sh
index 62ae4dd..9f61c94 100644
--- a/test/google-clasp/test.sh
+++ b/test/google-clasp/test.sh
@@ -14,7 +14,6 @@ source dev-container-features-test-lib
 # The 'check' command comes from the dev-container-features-test-lib.
 
 check "Check @google/clasp is installed" clasp --version
-check "Check types(@types/google-apps-script) is installed" npm list --global --depth 0 | grep -q "@types/google-apps-script@"
 
 # Report result
 # If any of the checks above exited with a non-zero exit code, the test will fail.
diff --git a/test/google-clasp/types_none.sh b/test/google-clasp/types_none.sh
deleted file mode 100644
index bd8fd7c..0000000
--- a/test/google-clasp/types_none.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# Optional: Import test library bundled with the devcontainer CLI
-# Provides the 'check' and 'reportResults' commands.
-# shellcheck source=/dev/null
-source dev-container-features-test-lib
-
-# Feature-specific tests
-# The 'check' command comes from the dev-container-features-test-lib.
-check "Check @google/clasp is installed" clasp --version
-check "Check types(@types/google-apps-script) is not installed" npm list --global --depth 0 | grep -v -q "@types/google-apps-script@"
-
-# Report result
-# If any of the checks above exited with a non-zero exit code, the test will fail.
-reportResults
diff --git a/test/google-clasp/types_v1.0.0.sh b/test/google-clasp/types_v1.0.0.sh
deleted file mode 100644
index 554c6ce..0000000
--- a/test/google-clasp/types_v1.0.0.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# Optional: Import test library bundled with the devcontainer CLI
-# Provides the 'check' and 'reportResults' commands.
-# shellcheck source=/dev/null
-source dev-container-features-test-lib
-
-# Feature-specific tests
-# The 'check' command comes from the dev-container-features-test-lib.
-check "Check @google/clasp is installed" clasp --version
-check "Check types(@types/google-apps-script) is installed" npm list --global --depth 0 | grep -q "@types/google-apps-script@1.0.0"
-
-# Report result
-# If any of the checks above exited with a non-zero exit code, the test will fail.
-reportResults
diff --git a/test/google-clasp/v2.4.0.sh b/test/google-clasp/v2.4.0.sh
index cf99055..fed1cab 100644
--- a/test/google-clasp/v2.4.0.sh
+++ b/test/google-clasp/v2.4.0.sh
@@ -11,7 +11,6 @@ source dev-container-features-test-lib
 # The 'check' command comes from the dev-container-features-test-lib.
 # clasp 2.4.0 は動作しないので、パッケージの存在確認のみ行う。
 check "Check @google/clasp@2.4.0 is installed" npm list --global --depth 0 | grep -q "@google/clasp@2.4.0"
-check "Check types(@types/google-apps-script) is installed" npm list --global --depth 0 | grep -q "@types/google-apps-script@"
 
 # Report result
 # If any of the checks above exited with a non-zero exit code, the test will fail.