diff --git a/storages/backends/azure_storage.py b/storages/backends/azure_storage.py
index 77e45c96..838c82b1 100644
--- a/storages/backends/azure_storage.py
+++ b/storages/backends/azure_storage.py
@@ -5,6 +5,7 @@
 from tempfile import SpooledTemporaryFile
 
 from azure.core.exceptions import ResourceNotFoundError
+from azure.core.utils import parse_connection_string
 from azure.storage.blob import BlobClient
 from azure.storage.blob import BlobSasPermissions
 from azure.storage.blob import BlobServiceClient
@@ -124,10 +125,13 @@ def __init__(self, **settings):
         self._user_delegation_key = None
         self._user_delegation_key_expiry = datetime.utcnow()
         if self.connection_string and (not self.account_name or not self.account_key):
-            self.account_name = re.search(
-                r"AccountName=(\w+);", self.connection_string
-            )[1]
-            self.account_key = re.search(r"AccountKey=(.*);", self.connection_string)[1]
+            parsed = parse_connection_string(
+                self.connection_string, case_sensitive_keys=True
+            )
+            if not self.account_name and "AccountName" in parsed:
+                self.account_name = parsed["AccountName"]
+            if not self.account_key and "AccountKey" in parsed:
+                self.account_key = parsed["AccountKey"]
 
     def get_default_settings(self):
         return {
diff --git a/tests/test_azure.py b/tests/test_azure.py
index b454fc2f..d5deed2a 100644
--- a/tests/test_azure.py
+++ b/tests/test_azure.py
@@ -292,6 +292,11 @@ def test_container_client_params_token_credential(self):
                 "https://test.blob.core.windows.net", credential="foo_cred"
             )
 
+    def test_connection_string_can_have_missing(self):
+        storage = azure_storage.AzureStorage(connection_string="AccountKey=abc;Foobar=xyz;")
+        self.assertEqual(storage.account_key, "abc")
+        self.assertIsNone(storage.account_name)
+
     def test_container_client_params_connection_string(self):
         storage = azure_storage.AzureStorage()
         storage.account_name = self.account_name