diff --git a/requirements/base.txt b/requirements/base.txt
index 12d66d806..4c4cf22b9 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -99,7 +99,7 @@ requests==2.32.3
     # via pooch
 sciline==24.10.0
     # via essreduce
-scipp==25.3.0
+scipp==25.4.0
     # via
     #   -r base.in
     #   essreduce
diff --git a/requirements/basetest.txt b/requirements/basetest.txt
index 77d8a8f20..494e158c9 100644
--- a/requirements/basetest.txt
+++ b/requirements/basetest.txt
@@ -182,7 +182,7 @@ sciline==24.10.0
     #   essreduce
     #   esssans
     #   essspectroscopy
-scipp==25.3.0
+scipp==25.4.0
     # via
     #   choppera
     #   essreduce