diff --git a/extras/packaging/gnu-linux/docker/Dockerfile_debian_unstable b/extras/packaging/gnu-linux/docker/Dockerfile_debian_unstable
index f63e1ef4746f4d72a233192b0c0c123b63845b72..2f1b125fbfa2501dd200be742d02741e77e538c1 100644
--- a/extras/packaging/gnu-linux/docker/Dockerfile_debian_unstable
+++ b/extras/packaging/gnu-linux/docker/Dockerfile_debian_unstable
@@ -11,14 +11,6 @@ RUN apt-get update && \
         libdbus-1-dev \
         wget
 
-# As of January 2024, the default compiler on Debian unstable is GCC 13.2.0, which
-# is unable to build one of Qt 6.6.1's dependencies, see:
-# https://github.com/qt/qtquick3d-assimp/commit/253f8bfa621a9fa6cd2c36291cdaa8c60c99322c
-# The linked commit above fixes the problem and is included in more recent versions of Qt.
-# For now, we use GCC 12 as a temporary workaround:
-ADD extras/packaging/gnu-linux/scripts/install-gcc-debian.sh /opt/install-gcc-debian.sh
-RUN /opt/install-gcc-debian.sh 12
-
 ADD extras/packaging/gnu-linux/scripts/prebuild-package-debian.sh /opt/prebuild-package-debian.sh
 
 COPY extras/packaging/gnu-linux/rules/debian-qt/control /tmp/builddeps/debian/control