diff --git a/dev-python/nbclassic/nbclassic-1.3.1.ebuild b/dev-python/nbclassic/nbclassic-1.3.1.ebuild
index de14b93404485..31bc7d619a861 100644
--- a/dev-python/nbclassic/nbclassic-1.3.1.ebuild
+++ b/dev-python/nbclassic/nbclassic-1.3.1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -27,6 +27,7 @@ RDEPEND="
 "
 
 BDEPEND="
+	dev-python/babel
 	dev-python/hatch-jupyter-builder[${PYTHON_USEDEP}]
 	test? (
 		dev-python/nbval[${PYTHON_USEDEP}]
diff --git a/dev-python/nbclassic/nbclassic-1.3.2.ebuild b/dev-python/nbclassic/nbclassic-1.3.2.ebuild
index 1c9eefb8283cd..60bd39ad3e1ed 100644
--- a/dev-python/nbclassic/nbclassic-1.3.2.ebuild
+++ b/dev-python/nbclassic/nbclassic-1.3.2.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -27,6 +27,7 @@ RDEPEND="
 "
 
 BDEPEND="
+	dev-python/babel
 	dev-python/hatch-jupyter-builder[${PYTHON_USEDEP}]
 	test? (
 		dev-python/nbval[${PYTHON_USEDEP}]
diff --git a/dev-python/nbclassic/nbclassic-1.3.3.ebuild b/dev-python/nbclassic/nbclassic-1.3.3.ebuild
index ba8540bac6edc..4c5fb4313c44b 100644
--- a/dev-python/nbclassic/nbclassic-1.3.3.ebuild
+++ b/dev-python/nbclassic/nbclassic-1.3.3.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -27,6 +27,7 @@ RDEPEND="
 "
 
 BDEPEND="
+	dev-python/babel
 	dev-python/hatch-jupyter-builder[${PYTHON_USEDEP}]
 	test? (
 		dev-python/nbval[${PYTHON_USEDEP}]