diff --git a/pkgs/development/python-modules/python-magic/default.nix b/pkgs/development/python-modules/python-magic/default.nix
index b0aeb1264a38..adcbc9e547da 100644
--- a/pkgs/development/python-modules/python-magic/default.nix
+++ b/pkgs/development/python-modules/python-magic/default.nix
@@ -38,6 +38,9 @@ buildPythonPackage rec {
       url = "https://github.com/ahupp/python-magic/commit/3d2405ca80cd39b2a91decd26af81dcf181390a4.patch";
       hash = "sha256-HRsnO9MGfMD9BkJdC4SrEFQ1OZEaXpwakXFLoaCPK94=";
     })
+
+    # Fix test failures due to modified output in file 5.47
+    ./fix-parquet-test.patch
   ];
 
   preCheck = ''
diff --git a/pkgs/development/python-modules/python-magic/fix-parquet-test.patch b/pkgs/development/python-modules/python-magic/fix-parquet-test.patch
new file mode 100644
index 000000000000..6062b28d30ca
--- /dev/null
+++ b/pkgs/development/python-modules/python-magic/fix-parquet-test.patch
@@ -0,0 +1,20 @@
+--- a/test/python_magic_test.py
++++ b/test/python_magic_test.py
+@@ -93,7 +93,7 @@ class MagicTest(unittest.TestCase):
+                 'magic._pyc_': ('application/octet-stream', 'text/x-bytecode.python', 'application/x-bytecode.python'),
+                 'test.pdf': 'application/pdf',
+                 'test.gz': ('application/gzip', 'application/x-gzip'),
+-                'test.snappy.parquet': 'application/octet-stream',
++                'test.snappy.parquet': ('application/octet-stream', 'application/vnd.apache.parquet'),
+                 'text.txt': 'text/plain',
+                 b'\xce\xbb'.decode('utf-8'): 'text/plain',
+                 b'\xce\xbb': 'text/plain',
+@@ -123,7 +123,7 @@ class MagicTest(unittest.TestCase):
+                      ': Sun Jun 29 01:32:52 2008, from Unix, truncated'
+                      ),
+                 'text.txt': 'ASCII text',
+-                'test.snappy.parquet': ('Apache Parquet', 'Par archive data'),
++                'test.snappy.parquet': ('Apache Parquet', 'Apache Parquet file', 'Par archive data'),
+             }, buf_equals_file=False)
+         finally:
+             del os.environ['TZ']