diff --git a/installer/lib/requirements-debian-buster.apt b/installer/lib/requirements-debian-buster.apt
index 9166faca7..c7e2a79ea 100644
--- a/installer/lib/requirements-debian-buster.apt
+++ b/installer/lib/requirements-debian-buster.apt
@@ -47,6 +47,7 @@ postgresql
 postgresql-client
 pwgen
 python3
+python3-dev
 python3-gi
 python3-gi-cairo
 python3-gst-1.0
diff --git a/installer/lib/requirements-ubuntu-bionic.apt b/installer/lib/requirements-ubuntu-bionic.apt
index 35276476a..e258349ea 100644
--- a/installer/lib/requirements-ubuntu-bionic.apt
+++ b/installer/lib/requirements-ubuntu-bionic.apt
@@ -58,6 +58,7 @@ postgresql
 postgresql-client
 pwgen
 python3
+python3-dev
 python3-cairo
 python3-dev
 python3-gi