diff --git a/gui-apps/corepdf/corepdf-4.1.0.ebuild b/gui-apps/corepdf/corepdf-4.1.0.ebuild
index 7c4c751123..c919177715 100644
--- a/gui-apps/corepdf/corepdf-4.1.0.ebuild
+++ b/gui-apps/corepdf/corepdf-4.1.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -23,6 +23,7 @@ SLOT="0"
 
 DEPEND="
 	app-text/poppler[qt5]
+	dev-qt/qtconcurrent:5
 	dev-qt/qtcore:5
 	dev-qt/qtgui:5
 	dev-qt/qtwidgets:5
diff --git a/gui-apps/corepdf/corepdf-4.2.0.ebuild b/gui-apps/corepdf/corepdf-4.2.0.ebuild
index 228e91c9f4..0ebca7da35 100644
--- a/gui-apps/corepdf/corepdf-4.2.0.ebuild
+++ b/gui-apps/corepdf/corepdf-4.2.0.ebuild
@@ -25,6 +25,7 @@ SLOT="0"
 
 DEPEND="
 	app-text/poppler[qt5]
+	dev-qt/qtconcurrent:5
 	dev-qt/qtcore:5
 	dev-qt/qtgui:5
 	dev-qt/qtwidgets:5
diff --git a/gui-apps/corepdf/corepdf-4.2.0_alpha.ebuild b/gui-apps/corepdf/corepdf-4.2.0_alpha.ebuild
index 228e91c9f4..0ebca7da35 100644
--- a/gui-apps/corepdf/corepdf-4.2.0_alpha.ebuild
+++ b/gui-apps/corepdf/corepdf-4.2.0_alpha.ebuild
@@ -25,6 +25,7 @@ SLOT="0"
 
 DEPEND="
 	app-text/poppler[qt5]
+	dev-qt/qtconcurrent:5
 	dev-qt/qtcore:5
 	dev-qt/qtgui:5
 	dev-qt/qtwidgets:5
diff --git a/gui-apps/corepdf/corepdf-9999.ebuild b/gui-apps/corepdf/corepdf-9999.ebuild
index 228e91c9f4..0ebca7da35 100644
--- a/gui-apps/corepdf/corepdf-9999.ebuild
+++ b/gui-apps/corepdf/corepdf-9999.ebuild
@@ -25,6 +25,7 @@ SLOT="0"
 
 DEPEND="
 	app-text/poppler[qt5]
+	dev-qt/qtconcurrent:5
 	dev-qt/qtcore:5
 	dev-qt/qtgui:5
 	dev-qt/qtwidgets:5