diff --git a/.github/workflows/portage-stable-packages-list b/.github/workflows/portage-stable-packages-list
index 29a991481c..8f1f9ee341 100644
--- a/.github/workflows/portage-stable-packages-list
+++ b/.github/workflows/portage-stable-packages-list
@@ -253,6 +253,7 @@ dev-libs/libxslt
 dev-libs/libyaml
 dev-libs/lzo
 dev-libs/mpc
+dev-libs/mpdecimal
 dev-libs/mpfr
 dev-libs/nettle
 dev-libs/npth