diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 1a8d01d0..00000000
--- a/Dockerfile
+++ /dev/null
@@ -1,37 +0,0 @@
-FROM ubuntu:22.04
-
-ARG USERNAME=developer
-ARG USER_UID=1000
-ARG USER_GID=$USER_UID
-
-# Create the user
-RUN groupadd --gid $USER_GID $USERNAME \
-    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
-    #
-    # [Optional] Add sudo support. Omit if you don't need to install software after connecting.
-    && apt-get update \
-    && apt-get install -y sudo \
-    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
-    && chmod 0440 /etc/sudoers.d/$USERNAME
-
-# Install some dependencies as root
-RUN apt-get update && apt-get install -y \
-    wget \
-    python3.10 python3-pip python3.10-venv \
-    git \
-    pkg-config \
-    libssl-dev && \
-    rm -rf /var/lib/apt/lists/*
-
-# Switch to regular user
-USER $USERNAME
-WORKDIR /home/${USERNAME}
-
-RUN sudo apt-get update
-RUN sudo apt-get install git
-
-# RUN sudo apt install pipx -y 8 
-
-# RUN pipx ensurepath
-
-# RUN pipx install git+https://github.com/multiversx/mx-sdk-py-cli@fix-deps-all
diff --git a/multiversx_sdk_cli/native_auth_client.py b/multiversx_sdk_cli/native_auth_client.py
index 6cba3010..db9c8217 100644
--- a/multiversx_sdk_cli/native_auth_client.py
+++ b/multiversx_sdk_cli/native_auth_client.py
@@ -6,13 +6,17 @@
 
 from multiversx_sdk_cli.errors import NativeAuthClientError
 
+NUMBER_OF_SECONDS_IN_A_MINUTE = 60
+NUMBER_OF_MINUTES_IN_AN_HOUR = 60
+NUMBER_OF_HOURS_IN_A_DAY = 24
+
 
 class NativeAuthClientConfig:
     def __init__(
             self,
             origin: str = '',
             api_url: str = "https://api.multiversx.com",
-            expiry_seconds: int = 60 * 60 * 24,
+            expiry_seconds: int = NUMBER_OF_SECONDS_IN_A_MINUTE * NUMBER_OF_MINUTES_IN_AN_HOUR * NUMBER_OF_HOURS_IN_A_DAY,
             block_hash_shard: Optional[int] = None,
             gateway_url: Optional[str] = None,
             extra_request_headers: Optional[Dict[str, str]] = None