diff --git a/poetry.lock b/poetry.lock
index 843ce48..cc66fb1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -274,8 +274,17 @@ brotli = ["brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
+[[package]]
+category = "main"
+description = "Windows Management Instrumentation"
+marker = "sys_platform == \"windows\""
+name = "wmi"
+optional = false
+python-versions = "*"
+version = "1.4.9"
+
 [metadata]
-content-hash = "1a7f436898ad10813c8bd4f2a4e12064e2777265bbd91616b00a997638a68e16"
+content-hash = "28c51f60ace8c8578c21279f8c46ba095d0ec1f1f86bb155c24cba67ac3291ee"
 python-versions = "^3.7"
 
 [metadata.files]
@@ -458,3 +467,7 @@ urllib3 = [
     {file = "urllib3-1.25.8-py2.py3-none-any.whl", hash = "sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc"},
     {file = "urllib3-1.25.8.tar.gz", hash = "sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc"},
 ]
+wmi = [
+    {file = "WMI-1.4.9.win32.exe", hash = "sha256:b1c57a5c7e27596736026ec7dd9a7c5318dad8248e7638f40c60c33cb33ac935"},
+    {file = "WMI-1.4.9.zip", hash = "sha256:192ccfad3d7bb3ef43116d753f4d5cf85c0a6b738f832cc131e928fd93cdd400"},
+]
diff --git a/pyproject.toml b/pyproject.toml
index b94e5a0..90b91e2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,6 +16,7 @@ pyobjc-core = {version = "^6.1", platform = "darwin"}
 pyobjc-framework-launchservices = {version = "^6.1", platform = "darwin"}
 macholib = "^1.14"
 pywin32 = {version = "^227", platform = "win32"}
+wmi = {version = "^1.4.9", platform = "windows"}
 
 [tool.poetry.dev-dependencies]
 black = "^19.10b0"