diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c98f52b99..92d0515e0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -118,7 +118,7 @@ debian8.10:
   stage: build
   script:
     - apt-get update
-    - apt-get install -y --no-install-recommends build-essential libtool automake libhdf5-dev cmake git ca-certificates libboost-dev libboost-date-time-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-serialization-dev liblog4cpp5-dev gnuradio-dev gr-osmosdr libblas-dev liblapack-dev libarmadillo-dev libgflags-dev libgoogle-glog-dev libgnutls-openssl-dev python-mako python-six libgtest-dev
+    - apt-get install -y --no-install-recommends build-essential libtool automake libhdf5-dev cmake git ca-certificates libboost-dev libboost-date-time-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-serialization-dev liblog4cpp5-dev gnuradio-dev gr-osmosdr libblas-dev liblapack-dev libgfortran-4.9-dev libgflags-dev libgoogle-glog-dev libgnutls-openssl-dev python-mako python-six libgtest-dev
     - cd build
     - cmake -DENABLE_OSMOSDR=ON ..
     - NPROC=$(grep -c ^processor /proc/cpuinfo)
@@ -168,6 +168,7 @@ debian10:
     - make -j$(($NPROC+1))
     - make check
     - make install
+  allow_failure: true
 
 
 fedora26:
@@ -262,7 +263,7 @@ ubuntu14.04:
     - add-apt-repository -y ppa:myriadrf/gnuradio
     - add-apt-repository -y ppa:myriadrf/drivers
     - apt-get update
-    - apt-get install -y --no-install-recommends build-essential libtool automake libhdf5-dev cmake git libboost-dev libboost-date-time-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-serialization-dev liblog4cpp5-dev gnuradio-dev libblas-dev liblapack-dev libarmadillo-dev libgflags-dev libgoogle-glog-dev libgnutls-openssl-dev python-mako python-six libgtest-dev
+    - apt-get install -y --no-install-recommends build-essential libtool automake libhdf5-dev cmake git libboost-dev libboost-date-time-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-serialization-dev liblog4cpp5-dev gnuradio-dev libblas-dev liblapack-dev libgfortran-4.7-dev libgflags-dev libgoogle-glog-dev libgnutls-openssl-dev python-mako python-six libgtest-dev
     - cd build
     - cmake ..
     - NPROC=$(grep -c ^processor /proc/cpuinfo)