diff --git a/conda/meta.yaml b/conda/meta.yaml
index b951d41e712952424895636b68c4781b6b2834db..61e7f459fa0cbfbe4b4aab12d8a6dbbd83e3e4e1 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -21,7 +21,7 @@ requirements:
     - python {{ python }}
     - setuptools {{ setuptools }}
     - pip {{ pip }}
-    - clapp
+    - clapper
     - bob.extension
     - bob.io.base
     - bob.bio.base
@@ -37,7 +37,7 @@ requirements:
   run:
     - python
     - setuptools
-    - clapp
+    - clapper
     - bob.extension
     - bob.io.base
     - bob.bio.base
diff --git a/pyproject.toml b/pyproject.toml
index 4410ed86aa4ed9fe08ddef0b14efe227633fc793..1635f5577ce8fac87230050925d50e22d8d50b04 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@
     dependencies = [
         "setuptools",
         "numpy",
-        "clapp",
+        "clapper",
         "bob.extension",
         "bob.bio.base",
         "bob.io.base",
diff --git a/src/bob/pad/face/database/casia_fasd.py b/src/bob/pad/face/database/casia_fasd.py
index a323efb7e6c455be1be270930ee5826539009305..9cdbae46371c117fb011306ff3586b54d2c9a54e 100644
--- a/src/bob/pad/face/database/casia_fasd.py
+++ b/src/bob/pad/face/database/casia_fasd.py
@@ -1,6 +1,6 @@
 import logging
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 
 from bob.bio.base.database.utils import download_file
 from bob.pad.base.database import FileListPadDatabase
diff --git a/src/bob/pad/face/database/casia_surf.py b/src/bob/pad/face/database/casia_surf.py
index f2ba5707857b7c7fa093f8834b8e5c1a1a9ca55c..b48c00fb2239ea5b0945003cff7810d93ea01b0f 100644
--- a/src/bob/pad/face/database/casia_surf.py
+++ b/src/bob/pad/face/database/casia_surf.py
@@ -3,7 +3,7 @@ import os
 
 from functools import partial
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 from sklearn.preprocessing import FunctionTransformer
 
 import bob.io.base
diff --git a/src/bob/pad/face/database/mask_attack.py b/src/bob/pad/face/database/mask_attack.py
index 08c588a6508171121f7e8444956fa32ab637b091..1df58ff43f0348fde90f245dbbae87ef097968df 100644
--- a/src/bob/pad/face/database/mask_attack.py
+++ b/src/bob/pad/face/database/mask_attack.py
@@ -6,7 +6,7 @@ from functools import partial
 import h5py
 import numpy as np
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 from sklearn.preprocessing import FunctionTransformer
 
 from bob.bio.base.database.utils import download_file
diff --git a/src/bob/pad/face/database/oulu_npu.py b/src/bob/pad/face/database/oulu_npu.py
index 995ebc712aab9fb0b49eac1fefe422f5de9b6780..de3a2015dede4af3966d170f29fcb93fefb83da0 100644
--- a/src/bob/pad/face/database/oulu_npu.py
+++ b/src/bob/pad/face/database/oulu_npu.py
@@ -1,6 +1,6 @@
 import logging
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 
 from bob.bio.base.database.utils import download_file
 from bob.pad.base.database import FileListPadDatabase
diff --git a/src/bob/pad/face/database/replay_attack.py b/src/bob/pad/face/database/replay_attack.py
index 18e7cca87b0e5ae17f4be06a8c5ebc5f073cc1f7..cf1a9e06b7531d97d058d8e2b496f41553e93aba 100644
--- a/src/bob/pad/face/database/replay_attack.py
+++ b/src/bob/pad/face/database/replay_attack.py
@@ -1,6 +1,6 @@
 import logging
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 
 from bob.bio.base.database.utils import download_file
 from bob.pad.base.database import FileListPadDatabase
diff --git a/src/bob/pad/face/database/replay_mobile.py b/src/bob/pad/face/database/replay_mobile.py
index bb298625f44850a3b45785da31ef9913e1bf0530..124733452680aa515dab57f22e56cb2230a6a6c3 100644
--- a/src/bob/pad/face/database/replay_mobile.py
+++ b/src/bob/pad/face/database/replay_mobile.py
@@ -1,6 +1,6 @@
 import logging
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 from sklearn.pipeline import make_pipeline
 
 from bob.bio.base.database.utils import download_file
diff --git a/src/bob/pad/face/database/swan.py b/src/bob/pad/face/database/swan.py
index b07443358c52c6888f88d735a6638aa3c2fad79d..48f606ff966fe2522694652dffb71d8a507ec0b4 100644
--- a/src/bob/pad/face/database/swan.py
+++ b/src/bob/pad/face/database/swan.py
@@ -1,6 +1,6 @@
 import logging
 
-from clapp.rc import UserDefaults
+from clapper.rc import UserDefaults
 
 from bob.bio.base.database.utils import download_file
 from bob.pad.base.database import FileListPadDatabase
diff --git a/src/bob/pad/face/script/statistics.py b/src/bob/pad/face/script/statistics.py
index 3437c71387329103977a323269a1f4d3ee7ffc12..b8c85ca97428e74ccf33513963520fdfdc2a4682 100644
--- a/src/bob/pad/face/script/statistics.py
+++ b/src/bob/pad/face/script/statistics.py
@@ -7,7 +7,7 @@ from os.path import expanduser
 import click
 import numpy as np
 
-from clapp.click import ConfigCommand, ResourceOption, verbosity_option
+from clapper.click import ConfigCommand, ResourceOption, verbosity_option
 
 from bob.bio.face.annotator import (
     BoundingBox,