diff --git a/.drone.yml b/.drone.yml
index 588375a..b64945d 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -24,7 +24,7 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qy g++-7 cmake libpoco-dev asciidoc catch
+  - apt-get install -qy g++-7 cmake libpoco-dev libboost-locale-dev asciidoc catch
   - rm -rf build && mkdir -p build && cd build
   - cmake -DWITH_MOZILLA=YES -DWITH_TESTS=YES ..
   - make VERBOSE=1
@@ -52,7 +52,7 @@ steps:
   - gpg --armor --export 0x60c317803a41ba51845e371a1e9377a2ba9ef27f | apt-key add -
   - apt-get update -q
   - apt-get install -qy -t bionic g++-9
-  - apt-get install -qy cmake libpoco-dev asciidoc catch
+  - apt-get install -qy cmake libpoco-dev libboost-locale-dev asciidoc catch
   - rm -rf build && mkdir -p build && cd build
   - cmake -DWITH_MOZILLA=YES ..
   - make VERBOSE=1
@@ -71,7 +71,7 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qy clang-6.0 cmake libpoco-dev asciidoc catch
+  - apt-get install -qy clang-6.0 cmake libpoco-dev libboost-locale-dev asciidoc catch
   - rm -rf build && mkdir -p build && cd build
   - cmake -DWITH_MOZILLA=YES ..
   - make VERBOSE=1
@@ -90,7 +90,7 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qy clang cmake libpoco-dev asciidoc catch
+  - apt-get install -qy clang cmake libpoco-dev libboost-locale-dev asciidoc catch
   - rm -rf build && mkdir -p build && cd build
   - cmake -DWITH_MOZILLA=YES ..
   - make VERBOSE=1
@@ -140,7 +140,7 @@ steps:
   - rm /etc/apt/apt.conf.d/docker-clean
   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
   - apt-get update -q
-  - apt-get install -qy g++ cmake libpoco-dev asciidoc catch
+  - apt-get install -qy g++ cmake libpoco-dev libboost-locale-dev asciidoc catch
   - apt-get install -qy build-essential file zip
   - rm -rf build && mkdir -p build && cd build
   - cmake -DCMAKE_INSTALL_PREFIX=/usr -DWITH_MOZILLA=YES -DMOZILLA_NMH_DIR="lib/mozilla/native-messaging-hosts" -DWITH_DEB=YES ..