diff --git a/.tool-versions b/.tool-versions
index fda00118..ebb61a5a 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 nodejs 20.17.0
-pnpm 9.11.0
+pnpm 9.15.4
 yarn 1.22.22
diff --git a/package.json b/package.json
index d4dc0452..61e67c3b 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "eslint-plugin-rxjs": "^5.0.3",
     "eslint-plugin-unicorn": "^55.0.0",
     "eslint-plugin-unused-imports": "^4.1.4",
-    "pnpm": "9.11.0",
+    "pnpm": "9.15.4",
     "prettier": "3.4.2",
     "tsm": "^2.3.0",
     "tsx": "^4.19.1",
diff --git a/snapshots/input/invalid-package-json/package.json b/snapshots/input/invalid-package-json/package.json
index 9939b1ae..7aeccf10 100644
--- a/snapshots/input/invalid-package-json/package.json
+++ b/snapshots/input/invalid-package-json/package.json
@@ -9,5 +9,5 @@
   "author": "",
   "license": "ISC",
   "private": true,
-  "packageManager": "pnpm@7.20.0"
+  "packageManager": "pnpm@9.15.4"
 }
diff --git a/snapshots/input/pnpm-workspaces/package.json b/snapshots/input/pnpm-workspaces/package.json
index 2913ce6f..1882b33b 100644
--- a/snapshots/input/pnpm-workspaces/package.json
+++ b/snapshots/input/pnpm-workspaces/package.json
@@ -9,5 +9,5 @@
   "author": "",
   "license": "ISC",
   "private": true,
-  "packageManager": "pnpm@7.20.0"
+  "packageManager": "pnpm@9.15.4"
 }
diff --git a/yarn.lock b/yarn.lock
index 265a3145..2a619c18 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2437,10 +2437,10 @@ pluralize@^8.0.0:
   resolved "https://registry.npmjs.org/pluralize/-/pluralize-8.0.0.tgz"
   integrity sha512-Nc3IT5yHzflTfbjgqWcCPpo7DaKy4FnpB0l/zCAW0Tc7jxAiuqSxHasntB3D7887LSrA93kDJ9IXovxJYxyLCA==
 
-pnpm@9.11.0:
-  version "9.11.0"
-  resolved "https://registry.yarnpkg.com/pnpm/-/pnpm-9.11.0.tgz#4cd20e68438613738e8f2bc9aece61eaa6b3e649"
-  integrity sha512-CiA/+u1aP2MkLNBkyPtYkjZsED4ygHkxj3gGLyTqjJ1QvGpHqjVnyr79gk0XDnj6J0XtHxaxMuFkNhRrdojxmw==
+pnpm@9.15.4:
+  version "9.15.4"
+  resolved "https://registry.yarnpkg.com/pnpm/-/pnpm-9.15.4.tgz#ffa0b5c573381e8035b354028ccff97c8e452047"
+  integrity sha512-stwg4vxys+GISEWbNzWaMgZGY+VielHkx0ssKd2OjgSRSDw6u0B4nP1Xi/Ni+2uoJhsF8Dh9dnku1uI+o7G2oA==
 
 prelude-ls@^1.2.1:
   version "1.2.1"