diff --git a/profiles/pentoo/base/package.mask b/profiles/pentoo/base/package.mask
index 4991daca8..e06536e58 100644
--- a/profiles/pentoo/base/package.mask
+++ b/profiles/pentoo/base/package.mask
@@ -69,3 +69,6 @@ sci-libs/mkl
 # force llvm/clang upgrade
 <llvm-core/llvm-18
 <llvm-core/clang-18
+
+# Gentoo bug: https://bugs.gentoo.org/968358
+>=dev-python/ipykernel-7.1.0