diff --git a/.github/workflows/release_test.yml b/.github/workflows/release_test.yml
index 772b5947..ad552dcd 100644
--- a/.github/workflows/release_test.yml
+++ b/.github/workflows/release_test.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Fetch Deps
         run: ci/actions/linux/install_deps.sh
       - name: Run Tests
-        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:gcc /bin/bash -c "cd /workspace && RELEASE=1 ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
+        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:gcc /bin/bash -c "cd /workspace && export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/boost/lib && ldconfig && RELEASE=1 ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
   
   clang_test:
     runs-on: ubuntu-18.04
@@ -44,7 +44,7 @@ jobs:
       - name: Fetch Deps
         run: ci/actions/linux/install_deps.sh
       - name: Run Tests
-        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:clang-6 /bin/bash -c "cd /workspace && RELEASE=1 ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
+        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:clang-6 /bin/bash -c "cd /workspace && export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/boost/lib && ldconfig && RELEASE=1 ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
 
   windows_test:
     runs-on: windows-latest
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e1b0a1af..14f4dfef 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Fetch Deps
         run: ci/actions/linux/install_deps.sh
       - name: Run Tests
-        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:gcc /bin/bash -c "cd /workspace && ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
+        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:gcc /bin/bash -c "cd /workspace && export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/boost/lib && ldconfig && ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
   
   clang_test:
     runs-on: ubuntu-18.04
@@ -42,7 +42,7 @@ jobs:
       - name: Fetch Deps
         run: ci/actions/linux/install_deps.sh
       - name: Run Tests
-        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:clang-6 /bin/bash -c "cd /workspace && ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
+        run: docker run -v ${PWD}:/workspace nanocurrency/nano-env:clang-6 /bin/bash -c "cd /workspace && export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/boost/lib && ldconfig && ./ci/build-travis.sh /usr/lib/x86_64-linux-gnu/cmake/Qt5 ${PWD}"
 
   windows_test:
     runs-on: windows-latest
diff --git a/docker/ci/Dockerfile-base b/docker/ci/Dockerfile-base
index 61cb8e7d..3bcd7bf2 100644
--- a/docker/ci/Dockerfile-base
+++ b/docker/ci/Dockerfile-base
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:18.04
 
 ENV DEBIAN_FRONTEND=noninteractive
 
@@ -6,7 +6,8 @@ RUN apt-get update -qq && apt-get install -yqq \
     build-essential \
     g++ \
     wget \
-    python
+    python \
+    zlib1g-dev
 
 RUN wget -O cmake_install.sh https://github.com/Kitware/CMake/releases/download/v3.15.4/cmake-3.15.4-Linux-x86_64.sh && \
 	chmod +x cmake_install.sh && \
diff --git a/docker/node/Dockerfile b/docker/node/Dockerfile
index 7ecdf418..1d070be5 100644
--- a/docker/node/Dockerfile
+++ b/docker/node/Dockerfile
@@ -16,7 +16,7 @@ RUN mkdir /tmp/build && \
     cd .. && \
     echo ${NETWORK} > /etc/nano-network
 
-FROM ubuntu:16.04
+FROM ubuntu:18.04
 
 RUN groupadd --gid 1000 nanocurrency && \
     useradd --uid 1000 --gid nanocurrency --shell /bin/bash --create-home nanocurrency
diff --git a/util/build_prep/fetch_boost.sh b/util/build_prep/fetch_boost.sh
index 86631437..2b938f33 100755
--- a/util/build_prep/fetch_boost.sh
+++ b/util/build_prep/fetch_boost.sh
@@ -4,7 +4,11 @@ OS=`uname`
 COMPILER="${COMPILER:-clang}"
 
 pushd /tmp
-wget -O boost-$OS-$COMPILER.tgz https://s3.us-east-2.amazonaws.com/repo.nano.org/artifacts/boost-$OS-$COMPILER-1.70-full.tgz
+if [[ "$OS" == 'Linux' ]]; then
+    wget -O boost-$OS-$COMPILER.tgz https://s3.us-east-2.amazonaws.com/repo.nano.org/artifacts/boost-$OS-$COMPILER-1.70-full-18.tgz
+else
+    wget -O boost-$OS-$COMPILER.tgz https://s3.us-east-2.amazonaws.com/repo.nano.org/artifacts/boost-$OS-$COMPILER-1.70-full.tgz
+fi
 tar -zxf boost-$OS-$COMPILER.tgz
 mv tmp/* .
 rm -fr tmp
diff --git a/util/build_prep/fetch_rocksdb.sh b/util/build_prep/fetch_rocksdb.sh
index 61d14d43..b3062ccf 100755
--- a/util/build_prep/fetch_rocksdb.sh
+++ b/util/build_prep/fetch_rocksdb.sh
@@ -1,11 +1,6 @@
 #!/usr/bin/env bash
 OS=`uname`
-
-if [[ $OS =~ "Darwin" ]]; then
-	artifact="rocksdb-clang-latest.tgz"
-else
-	artifact="rocksdb-gcc-latest.tgz"
-fi
+artifact="rocksdb-Linux-6.3.6-18.tgz"
 
 pushd /tmp
 wget -O $artifact https://s3.us-east-2.amazonaws.com/repo.nano.org/artifacts/$artifact