diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b80f51af..117cf95c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,6 +19,8 @@ variables:
   DOCKER_TLS_CERTDIR: ""
   DOCKER_HOST: "tcp://docker_service_host:2375"
   K8S_INGRESS_DOMAIN: "polemarch-$KUBE_NAMESPACE.$KUBE_INGRESS_BASE_DOMAIN"
+  LC_ALL: en_US.UTF-8
+  LANG: en_US.UTF-8
 
 stages:
   - code_standarts
diff --git a/Dockerfile b/Dockerfile
index c50dbc89..97c85e7b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,10 @@ WORKDIR /usr/local/project
 
 COPY . .
 
+ENV WORKER=ENABLE
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
+
 RUN tox -c tox_build.ini -e py36-build && \
     mv dist/ environment/docker_data/
 
@@ -12,6 +16,8 @@ RUN tox -c tox_build.ini -e py36-build && \
 FROM alpine:3.11
 
 ENV WORKER=ENABLE
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 
 COPY --from=build /usr/local/project/environment/docker_data/ /etc/polemarch/
 
diff --git a/polemarch/__init__.py b/polemarch/__init__.py
index 08f26b08..acb1787d 100644
--- a/polemarch/__init__.py
+++ b/polemarch/__init__.py
@@ -31,6 +31,6 @@
     "VST_ROOT_URLCONF": os.getenv("VST_ROOT_URLCONF", 'vstutils.urls'),
 }
 
-__version__ = "1.8.3"
+__version__ = "1.8.4"
 
 prepare_environment(**default_settings)
diff --git a/tox.ini b/tox.ini
index b86a372f..fad3eab9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,8 @@ whitelist_externals =
 setenv =
     CCACHE_DIR = {envdir}/.ccache
     COMPILE_WITH_TESTS = true
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 passenv =
     DJANGO_LOG_LEVEL
     CC
@@ -66,6 +68,9 @@ commands =
 
 [testenv:build]
 basepython = python3.6
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 passenv = *
 changedir = .
 whitelist_externals =
@@ -78,6 +83,9 @@ commands =
 [testenv:builddoc]
 basepython = python3.6
 changedir = ./doc/
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 whitelist_externals =
     cp
     make
@@ -92,6 +100,9 @@ deps =
 basepython = python3.6
 toxworkdir = ./
 passenv = *
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 whitelist_externals =
     mkdir
     ls
@@ -107,7 +118,10 @@ basepython = python3.6
 skipsdist = False
 usedevelop = True
 envdir = {toxinidir}/env
-setenv = CCACHE_DIR = {envdir}/.ccache
+setenv =
+    CCACHE_DIR = {envdir}/.ccache
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 passenv = *
 whitelist_externals = *
 commands =
@@ -120,6 +134,9 @@ deps =
 
 [testenv:deploy_env]
 passenv = *
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 whitelist_externals =
     /bin/sh
 commands =
@@ -133,6 +150,9 @@ deps =
 
 [testenv:destroy_env]
 passenv = *
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 whitelist_externals =
     /bin/sh
 commands =
@@ -146,6 +166,9 @@ deps =
 
 [testenv:release-docker]
 passenv = *
+setenv =
+    LC_ALL = en_US.UTF-8
+    LANG = en_US.UTF-8
 commands = ansible-playbook docker_release.yml -v -i ./environment/docker_build_image_inventory.ini --connection local
 deps =
     ansible==2.5
diff --git a/tox_build.ini b/tox_build.ini
index dcdd93f4..3d7d300a 100644
--- a/tox_build.ini
+++ b/tox_build.ini
@@ -22,7 +22,7 @@ deps =
     cython>=0.29,<1.0
     wheel==0.31.1
     setuptools>=40.6.3
-    jsmin==2.2.2
+    jsmin==3.0.0
     csscompressor==0.9.5
     {rpm,deb}: virtualenv==16.0
     {rpm,deb}: venvctrl