diff --git a/tests/test_general.py b/tests/test_general.py
index 777148d7c..8edc8dd8f 100644
--- a/tests/test_general.py
+++ b/tests/test_general.py
@@ -1927,7 +1927,7 @@ def test_4533():
     cp = subprocess.run(command, shell=1, check=0)
     e = cp.returncode
     print(f'{e=}')
-    if pymupdf.mupdf_version_tuple >= (1, 27):
+    if pymupdf.mupdf_version_tuple >= (1, 26, 6):
         assert e == 0
     else:
         assert e != 0
diff --git a/tests/test_insertpdf.py b/tests/test_insertpdf.py
index e7961b6a0..9689beb8c 100644
--- a/tests/test_insertpdf.py
+++ b/tests/test_insertpdf.py
@@ -326,7 +326,7 @@ def test_4571():
         print(f'Have saved to: {path_out=}')
     with open(path_out, 'rb') as f:
         content = f.read()
-    if pymupdf.mupdf_version_tuple >= (1, 27):
+    if pymupdf.mupdf_version_tuple >= (1, 26, 6):
         # Correct.
         assert b'<</Type/Pages/Count 6/Kids[4 0 R 6 0 R 12 0 R 13 0 R 14 0 R 15 0 R]>>' in content
     else:
diff --git a/tests/test_pixmap.py b/tests/test_pixmap.py
index 0fc3a52e0..4c91bcf6c 100644
--- a/tests/test_pixmap.py
+++ b/tests/test_pixmap.py
@@ -624,7 +624,7 @@ def test_4388():
 
     rms = gentle_compare.pixmaps_rms(pixmap_correct, pixmap_test)
     print(f'{rms=}')
-    if pymupdf.mupdf_version_tuple >= (1, 27):
+    if pymupdf.mupdf_version_tuple >= (1, 26, 6):
         assert rms == 0
     else:
         assert rms >= 10