diff --git a/.dockerignore b/.dockerignore
index 4acd06b..3570422 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1 +1,2 @@
 config.py
+__pycache__
diff --git a/Dockerfile b/Dockerfile
index 2bd6b69..b5b27db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,9 +2,9 @@ FROM python:3.10-alpine
 
 WORKDIR /usr/src/app
 
-COPY requirements.txt ./
-RUN apk add --no-cache git gcc musl-dev python3-dev libffi-dev openssl-dev cargo && pip install -U pip && pip install --no-cache-dir -r requirements.txt && apk del gcc musl-dev python3-dev libffi-dev openssl-dev cargo
+COPY poetry.lock pyproject.toml ./
 
+RUN apk add --no-cache gcc musl-dev python3-dev libffi-dev openssl-dev cargo && pip install --no-cache-dir poetry && poetry config virtualenvs.create false && poetry install --no-root --no-interaction --no-ansi -vvv && apk del gcc musl-dev python3-dev libffi-dev openssl-dev cargo
 COPY . .
 
 WORKDIR /usr/src/app/robocop_ng
diff --git a/robocop_ng/helpers/errcodes.py b/robocop_ng/helpers/errcodes.py
index e4f22bb..6b3dcb4 100644
--- a/robocop_ng/helpers/errcodes.py
+++ b/robocop_ng/helpers/errcodes.py
@@ -673,7 +673,7 @@ switch_known_errcodes = {
     0x7D202: "Error: Specified partition is not found. ",
     0x7D402: "Error: Specified target is not found. ",
     0xFA002: "Error: Failed to access SD card. ",
-    0x136802: "Error: Failed to access game card. "
+    0x136802: "Error: Failed to access game card. ",
     0x177202: "Error: Specified operation is not implemented. ",
     0x177A02: "Error: Specified value is out of range. ",
     0x190002: "Error: Failed to allocate memory. ",