diff --git a/stitching/feature_detector.py b/stitching/feature_detector.py
index 9cf7112..1435655 100644
--- a/stitching/feature_detector.py
+++ b/stitching/feature_detector.py
@@ -13,8 +13,6 @@ class FeatureDetector:
 
     DETECTOR_CHOICES["orb"] = cv.ORB.create
     DETECTOR_CHOICES["sift"] = cv.SIFT_create
-    DETECTOR_CHOICES["brisk"] = cv.BRISK_create
-    DETECTOR_CHOICES["akaze"] = cv.AKAZE_create
 
     DEFAULT_DETECTOR = list(DETECTOR_CHOICES.keys())[0]
 
diff --git a/tests/stitching_detailed.py b/tests/stitching_detailed.py
index 6b1d0b8..8456879 100644
--- a/tests/stitching_detailed.py
+++ b/tests/stitching_detailed.py
@@ -39,11 +39,13 @@
 except AttributeError:
     pass
 try:
-    FEATURES_FIND_CHOICES["brisk"] = cv.BRISK_create
+    cv.xfeatures2d_BRISK.create()  # check if the function can be called
+    FEATURES_FIND_CHOICES["brisk"] = cv.xfeatures2d_BRISK.create
 except AttributeError:
     print("BRISK not available")
 try:
-    FEATURES_FIND_CHOICES["akaze"] = cv.AKAZE_create
+    cv.xfeatures2d_AKAZE.create()  # check if the function can be called
+    FEATURES_FIND_CHOICES["akaze"] = cv.xfeatures2d_AKAZE.create
 except AttributeError:
     print("AKAZE not available")