diff --git a/Dockerfile b/Dockerfile
index db3c5b3..48accb8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,20 +1,21 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 ENV DEBIAN_FRONTEND "noninteractive"
 ENV LANG "ja_JP.UTF-8"
 ENV PYTHONIOENCODING "utf-8"
 
 RUN apt update -y \
+      && apt install -y software-properties-common \
+      && add-apt-repository -y ppa:deadsnakes/ppa \
       && apt install -y \
             language-pack-ja \
             build-essential \
-            git \
             wget \
             mecab \
             libmecab-dev \
             mecab-ipadic-utf8 \
-            python3 \
-            python3-dev \
+            python3.10 \
+            python3.10-dev \
             python3-pip \
       && rm -rf /var/lib/apt/lists/*
 
@@ -25,7 +26,7 @@ RUN wget http://www.phontron.com/kytea/download/kytea-0.4.7.tar.gz
 RUN wget https://patch-diff.githubusercontent.com/raw/neubig/kytea/pull/24.patch
 RUN tar zxvf kytea-0.4.7.tar.gz \
       && cd kytea-0.4.7 \
-      && git apply ../24.patch \
+      && patch -p1 < ../24.patch \
       && ./configure && make && make install && ldconfig -v \
       && cd .. && rm -rf kytea-0.4.7.tar.gz kytea-0.4.7
 
@@ -37,9 +38,11 @@ COPY ./pyproject.toml ./pyproject.toml
 COPY ./poetry.lock ./poetry.lock
 COPY ./README.md ./README.md
 
-RUN pip3 install -U pip
-RUN pip3 install poetry==1.2.2
-RUN poetry install --no-dev -E all
-RUN poetry cache clear pypi --all --no-interaction
+RUN python3.10 -m pip install -U pip
+RUN python3.10 -m pip install .[all]
 
-CMD ["poetry", "run", "uvicorn", "--factory", "konoha.api.server:create_app", "--reload", "--host", "0.0.0.0", "--port", "8000"]
+CMD [ \
+      "python3.10", "-m", "uvicorn", \
+      "--factory", "konoha.api.server:create_app", \
+      "--reload", "--host", "0.0.0.0", "--port", "8000" \
+]