diff --git a/.travis.yml b/.travis.yml
index fd280a91ab..4acfe4db76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -112,10 +112,11 @@ jobs:
         FILE_ENV="./ci/test/00_setup_env_native_qt5.sh"
 
     - stage: test
-      name: 'x86_64 Linux  [GOAL: install]  [xenial]  [no depends, only system libs, sanitizers: thread (TSan), no wallet]'
+      name: 'x86_64 Linux  [GOAL: install]  [bionic]  [no depends, only system libs, sanitizers: thread (TSan), no wallet]'
+      # Not enough memory on travis machines, so feature_block is excluded for now
       env: >-
+        TEST_RUNNER_EXTRA="--exclude feature_block"
         FILE_ENV="./ci/test/00_setup_env_native_tsan.sh"
-        TEST_RUNNER_EXTRA="--exclude feature_block"  # Not enough memory on travis machines
 
     - stage: test
       name: 'x86_64 Linux  [GOAL: install]  [bionic]  [no depends, only system libs, sanitizers: address/leak (ASan + LSan) + undefined (UBSan) + integer]'
diff --git a/ci/test/00_setup_env.sh b/ci/test/00_setup_env.sh
index dae61c5e34..2c08fdbcd8 100755
--- a/ci/test/00_setup_env.sh
+++ b/ci/test/00_setup_env.sh
@@ -40,6 +40,8 @@ export DOCKER_NAME_TAG=${DOCKER_NAME_TAG:-ubuntu:18.04}
 # Randomize test order.
 # See https://www.boost.org/doc/libs/1_71_0/libs/test/doc/html/boost_test/utf_reference/rt_param_reference/random.html
 export BOOST_TEST_RANDOM=${BOOST_TEST_RANDOM:-1}
+# See man 7 debconf
+export DEBIAN_FRONTEND=noninteractive
 export CCACHE_SIZE=${CCACHE_SIZE:-100M}
 export CCACHE_TEMPDIR=${CCACHE_TEMPDIR:-/tmp/.ccache-temp}
 export CCACHE_COMPRESS=${CCACHE_COMPRESS:-1}
diff --git a/ci/test/00_setup_env_native_tsan.sh b/ci/test/00_setup_env_native_tsan.sh
index 73ab5eebb6..63d06dea64 100644
--- a/ci/test/00_setup_env_native_tsan.sh
+++ b/ci/test/00_setup_env_native_tsan.sh
@@ -7,8 +7,8 @@
 export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_native_tsan
-export DOCKER_NAME_TAG=ubuntu:16.04
-export PACKAGES="clang-8 llvm-8 python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-test-dev libboost-thread-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev"
+export DOCKER_NAME_TAG=ubuntu:18.04
+export PACKAGES="clang-9 llvm-9 python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-test-dev libboost-thread-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev"
 export NO_DEPENDS=1
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --disable-wallet --with-gui=qt5 CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER' --with-sanitizers=thread --disable-hardening --disable-asm CC=clang-8 CXX=clang++-8"
+export BITCOIN_CONFIG="--enable-zmq --disable-wallet --with-gui=qt5 CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER' --with-sanitizers=thread --disable-hardening --disable-asm CC=clang-9 CXX=clang++-9"
diff --git a/ci/test/04_install.sh b/ci/test/04_install.sh
index 5dbf1b82f1..8eb49e9ac1 100755
--- a/ci/test/04_install.sh
+++ b/ci/test/04_install.sh
@@ -26,7 +26,7 @@ export ASAN_OPTIONS="detect_stack_use_after_return=1:check_initialization_order=
 export LSAN_OPTIONS="suppressions=${BASE_ROOT_DIR}/test/sanitizer_suppressions/lsan"
 export TSAN_OPTIONS="suppressions=${BASE_ROOT_DIR}/test/sanitizer_suppressions/tsan:log_path=${BASE_SCRATCH_DIR}/sanitizer-output/tsan"
 export UBSAN_OPTIONS="suppressions=${BASE_ROOT_DIR}/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1"
-env | grep -E '^(BITCOIN_CONFIG|BASE_|QEMU_|CCACHE_|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|(ASAN|LSAN|TSAN|UBSAN)_OPTIONS|TEST_PREVIOUS_RELEASES|PREVIOUS_RELEASES_DIR)' | tee /tmp/env
+env | grep -E '^(BITCOIN_CONFIG|BASE_|QEMU_|CCACHE_|LC_ALL|BOOST_TEST_RANDOM|DEBIAN_FRONTEND|CONFIG_SHELL|(ASAN|LSAN|TSAN|UBSAN)_OPTIONS|TEST_PREVIOUS_RELEASES|PREVIOUS_RELEASES_DIR)' | tee /tmp/env
 if [[ $HOST = *-mingw32 ]]; then
   DOCKER_ADMIN="--cap-add SYS_ADMIN"
 elif [[ $BITCOIN_CONFIG = *--with-sanitizers=*address* ]]; then # If ran with (ASan + LSan), Docker needs access to ptrace (https://github.com/google/sanitizers/issues/764)