diff --git a/package.json b/package.json
index 62858ee..e069d77 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   "dependencies": {
     "@slack/bolt": "^3.12.2",
     "@types/express": "^4.17.15",
-    "@types/node": "^18.11.18",
+    "@types/node": "^20.5.9",
     "cross-env": "^7.0.3",
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
diff --git a/yarn.lock b/yarn.lock
index 55713b6..ca7a4af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -133,10 +133,10 @@
   resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
   integrity sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==
 
-"@types/node@*", "@types/node@>=12", "@types/node@>=12.0.0", "@types/node@>=8.1.0", "@types/node@^18.11.18":
-  version "18.11.18"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.11.18.tgz#8dfb97f0da23c2293e554c5a50d61ef134d7697f"
-  integrity sha512-DHQpWGjyQKSHj3ebjFI/wRKcqQcdR+MoFBygntYOZytCqNfkd2ZC4ARDJ2DQqhjH5p85Nnd3jhUJIXrszFX/JA==
+"@types/node@*", "@types/node@>=12", "@types/node@>=12.0.0", "@types/node@>=8.1.0", "@types/node@^20.5.9":
+  version "20.5.9"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.5.9.tgz#a70ec9d8fa0180a314c3ede0e20ea56ff71aed9a"
+  integrity sha512-PcGNd//40kHAS3sTlzKB9C9XL4K0sTup8nbG5lC14kzEteTNuAFh9u5nA0o5TWnSG2r/JNPRXFVcHJIIeRlmqQ==
 
 "@types/node@18.11.8":
   version "18.11.8"