diff --git a/Dockerfile b/Dockerfile
index d89847d..02d4fcf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ENV PATH=/root/.local/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/loca
 
 # install node and yarn
 RUN apt-get update
-RUN apt-get -y install postgresql-client
+RUN apt-get -y install postgresql-client libpcre3 libpcre3-dev
 
 # config project dir
 RUN mkdir /protocol-builder-mock
diff --git a/Pipfile b/Pipfile
index 720fca9..2d13f1d 100644
--- a/Pipfile
+++ b/Pipfile
@@ -20,7 +20,7 @@ ma = "*"
 marshmallow-sqlalchemy = "*"
 wtforms-alchemy = "*"
 psycopg2-binary = "*"
-pyScss = "*"
+pyscss = "*"
 
 [requires]
 python_version = "3.7"
diff --git a/Pipfile.lock b/Pipfile.lock
index ff74ad8..34da46f 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "03ddafd687cb99238fc67ce6732cdb0ed3708e9d257f40adf71989c75f3b1f92"
+            "sha256": "ca92325f9ff90d6263f261dc514de998c618a3e91614f9c1987b2f0db9b72dcf"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -376,16 +376,16 @@
         },
         "pyrsistent": {
             "hashes": [
-                "sha256:cdc7b5e3ed77bed61270a47d35434a30617b9becdf2478af76ad2c6ade307280"
+                "sha256:28669905fe725965daa16184933676547c5bb40a5153055a8dee2a4bd7933ad3"
             ],
-            "version": "==0.15.7"
+            "version": "==0.16.0"
         },
         "pyscss": {
             "hashes": [
-                "sha256:14a25c33c221a66bb1f000a6a067f376528d3df2f9333cee9c95709a9280cdb0"
+                "sha256:123c1a9087f1c420bea891ebf19d5222262c7d30ced20bb38586023de28c9d4f"
             ],
             "index": "pypi",
-            "version": "==1.3.5"
+            "version": "==1.3.6"
         },
         "python-dateutil": {
             "hashes": [