diff --git a/nxc/protocols/mssql.py b/nxc/protocols/mssql.py
index 7fa9746f..4ffb4fbd 100755
--- a/nxc/protocols/mssql.py
+++ b/nxc/protocols/mssql.py
@@ -451,7 +451,7 @@ class mssql(connection):
 
             # Query known group to determine raw SID & convert to canon
             raw_domain_sid = self.conn.sql_query(f"SELECT SUSER_SID('{domain}\\Domain Admins')")[0][""]
-            domain_sid = SID(bytes.fromhex(raw_domain_sid.decode())).formatCanonical()[:-4]
+            domain_sid = SID(bytes.fromhex(raw_domain_sid)).formatCanonical()[:-4]
         except Exception as e:
             self.logger.fail(f"Error parsing SID. Not domain joined?: {e}")
             return entries
diff --git a/poetry.lock b/poetry.lock
index 13dc2e2e..418cd087 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -516,7 +516,7 @@ dev = ["black (>=23.0.0)", "mypy (>=1.0.0)", "pytest (>=7.0.0)", "pytest-cov (>=
 
 [[package]]
 name = "certipy-ad"
-version = "5.0.4"
+version = "5.1.0"
 description = "Active Directory Certificate Services enumeration and abuse"
 optional = false
 python-versions = ">=3.10"
@@ -544,7 +544,7 @@ bloodhound = ["neo4j (>=5.28.1,<5.29.0)"]
 type = "git"
 url = "https://github.com/Pennyw0rth/Certipy"
 reference = "HEAD"
-resolved_reference = "49a4aa6b17d2246491a81f89b0d7d74b732c66d4"
+resolved_reference = "069e03113095aa02772aa3d8debea90654933fe4"
 
 [[package]]
 name = "cffi"