diff --git a/tests/dockerfiles/Debian_testing.docker b/tests/dockerfiles/Debian_testing.docker
index 99a8d96..a3d16ba 100644
--- a/tests/dockerfiles/Debian_testing.docker
+++ b/tests/dockerfiles/Debian_testing.docker
@@ -12,6 +12,7 @@
     swig \
     doxygen \
     liblog4cpp5-dev \
+    python-gtk2 \
     python-scipy \
     gnuradio-dev \
     gr-osmosdr \
@@ -26,9 +27,6 @@
     # The parallel build sometimes fails when the .grc_gnuradio
     # and .gnuradio directories do not exist
     mkdir $HOME/.grc_gnuradio/ $HOME/.gnuradio/ && \
-    # Workaround for the grcc failure
-    # https://github.com/ptrkrysik/gr-gsm/pull/378#issuecomment-379587145
-    ln -sf /usr/lib/x86_64-linux-gnu/libvolk.so.1.3.1 /usr/lib/x86_64-linux-gnu/libvolk.so.1.3 && \
     make -j $(nproc) && \
     make install && \
     ldconfig && \