diff --git a/conda/meta.yaml b/conda/meta.yaml
index b6efea74d7b719d274d997eb492d2373f5ded88b..28fb92fcafae9b3f330c67adac64edf451f36901 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -21,7 +21,7 @@ requirements:
     - python {{ python }}
     - setuptools {{ setuptools }}
     - pip {{ pip }}
-    - clapp
+    - clapper
     - bob.measure
     - bob.learn.em
     - bob.bio.base
@@ -31,7 +31,7 @@ requirements:
   run:
     - python
     - setuptools
-    - clapp
+    - clapper
     - bob.measure
     - bob.learn.em
     - bob.bio.base
diff --git a/pyproject.toml b/pyproject.toml
index 3668946c1afbf2717bc5c6733422491937fef7d7..0fb89604ab5a1e7a3debd5854db127f5d8ce3612 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@
     dependencies = [
         "setuptools",
         "numpy",
-        "clapp",
+        "clapper",
         "bob.measure",
         "bob.learn.em",
         "bob.bio.base",
diff --git a/src/bob/fusion/base/script/boundary.py b/src/bob/fusion/base/script/boundary.py
index 728ff9c1a19d21bd130ef31a78f406d0fa1214fb..930100f69995ee97a949103bbeac9e873229e8ad 100644
--- a/src/bob/fusion/base/script/boundary.py
+++ b/src/bob/fusion/base/script/boundary.py
@@ -5,7 +5,7 @@ import logging
 import click
 import numpy as np
 
-from clapp.click import verbosity_option
+from clapper.click import verbosity_option
 
 from bob.bio.base.score import load_score
 
diff --git a/src/bob/fusion/base/script/fuse.py b/src/bob/fusion/base/script/fuse.py
index c97fe1c8c5de723416671aadbc29ce4a2788aa62..87e5d8df5919749f3835c24ae6a68423d8e9ae3c 100644
--- a/src/bob/fusion/base/script/fuse.py
+++ b/src/bob/fusion/base/script/fuse.py
@@ -9,7 +9,7 @@ import sys
 import click
 import numpy as np
 
-from clapp.click import ResourceOption, verbosity_option
+from clapper.click import ResourceOption, verbosity_option
 
 from bob.bio.base import utils
 from bob.bio.base.score import dump_score, load_score
diff --git a/src/bob/fusion/base/script/fusion.py b/src/bob/fusion/base/script/fusion.py
index 456f8057a3d8def720d254614172d5e5ed3181b2..2ab5a9618817f4bfea5f35b3e1ac283c20af922c 100644
--- a/src/bob/fusion/base/script/fusion.py
+++ b/src/bob/fusion/base/script/fusion.py
@@ -3,7 +3,7 @@
 import click
 import pkg_resources
 
-from clapp.click import AliasedGroup
+from clapper.click import AliasedGroup
 from click_plugins import with_plugins
 
 
diff --git a/src/bob/fusion/base/script/resource.py b/src/bob/fusion/base/script/resource.py
index bef0aac4d7b84d2ea0cf551b0d474644d1981e32..71015cfac9dac295c09fd19a54b917b84d3fab98 100644
--- a/src/bob/fusion/base/script/resource.py
+++ b/src/bob/fusion/base/script/resource.py
@@ -6,7 +6,7 @@ import logging
 
 import click
 
-from clapp.click import verbosity_option
+from clapper.click import verbosity_option
 
 import bob.bio.base