diff --git a/{{cookiecutter.project_slug}}/backend/app/pyproject.toml b/{{cookiecutter.project_slug}}/backend/app/pyproject.toml
index ea4e04e198..3c9a0c5a0f 100644
--- a/{{cookiecutter.project_slug}}/backend/app/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/backend/app/pyproject.toml
@@ -5,8 +5,8 @@ description = ""
 authors = ["Admin <admin@example.com>"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
-uvicorn = "^0.11.3"
+python = "^3.8"
+uvicorn = ">=0.24.0.post1"
 fastapi = "^0.54.1"
 python-multipart = "^0.0.5"
 email-validator = "^1.0.5"
@@ -26,8 +26,8 @@ pytest = "^5.4.1"
 python-jose = {extras = ["cryptography"], version = "^3.1.0"}
 
 [tool.poetry.dev-dependencies]
-mypy = "^0.770"
-black = "^19.10b0"
+mypy = ">=1.7.0"
+black = ">=23.11.0"
 isort = "^4.3.21"
 autoflake = "^1.3.1"
 flake8 = "^3.7.9"
diff --git a/{{cookiecutter.project_slug}}/backend/backend.dockerfile b/{{cookiecutter.project_slug}}/backend/backend.dockerfile
index 8c39c502af..88c1bc03fa 100644
--- a/{{cookiecutter.project_slug}}/backend/backend.dockerfile
+++ b/{{cookiecutter.project_slug}}/backend/backend.dockerfile
@@ -1,9 +1,9 @@
-FROM tiangolo/uvicorn-gunicorn-fastapi:python3.7
+FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8
 
 WORKDIR /app/
 
 # Install Poetry
-RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/opt/poetry python && \
     cd /usr/local/bin && \
     ln -s /opt/poetry/bin/poetry && \
     poetry config virtualenvs.create false
@@ -13,7 +13,7 @@ COPY ./app/pyproject.toml ./app/poetry.lock* /app/
 
 # Allow installing dev dependencies to run tests
 ARG INSTALL_DEV=false
-RUN bash -c "if [ $INSTALL_DEV == 'true' ] ; then poetry install --no-root ; else poetry install --no-root --no-dev ; fi"
+RUN bash -c "if [ $INSTALL_DEV == 'true' ] ; then poetry install --no-root ; else poetry install --no-root --only main ; fi"
 
 # For development, Jupyter remote kernel, Hydrogen
 # Using inside the container:
diff --git a/{{cookiecutter.project_slug}}/backend/celeryworker.dockerfile b/{{cookiecutter.project_slug}}/backend/celeryworker.dockerfile
index 4695a7b7ec..5e9d9ce716 100644
--- a/{{cookiecutter.project_slug}}/backend/celeryworker.dockerfile
+++ b/{{cookiecutter.project_slug}}/backend/celeryworker.dockerfile
@@ -1,9 +1,9 @@
-FROM python:3.7
+FROM python:3.8
 
 WORKDIR /app/
 
 # Install Poetry
-RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/opt/poetry python && \
     cd /usr/local/bin && \
     ln -s /opt/poetry/bin/poetry && \
     poetry config virtualenvs.create false
@@ -13,7 +13,7 @@ COPY ./app/pyproject.toml ./app/poetry.lock* /app/
 
 # Allow installing dev dependencies to run tests
 ARG INSTALL_DEV=false
-RUN bash -c "if [ $INSTALL_DEV == 'true' ] ; then poetry install --no-root ; else poetry install --no-root --no-dev ; fi"
+RUN bash -c "if [ $INSTALL_DEV == 'true' ] ; then poetry install --no-root ; else poetry install --no-root --only main ; fi"
 
 # For development, Jupyter remote kernel, Hydrogen
 # Using inside the container: