diff --git a/.travis.yml b/.travis.yml
index 307f80cd..cf67476f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,7 @@ before_install:
     fi
 
 install:
-    - pip install mkdocs==1.1 mkdocs-material==4.6.3
+    - pip install --no-cache-dir mkdocs==1.1 mkdocs-material==4.6.3
 
 script:
   - docker build --target=builder --tag=doccano-test .
diff --git a/Dockerfile b/Dockerfile
index db69bde4..0638fc6e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,8 +21,8 @@ WORKDIR /doccano/app/server/static
 RUN npm ci
 
 COPY requirements.txt /
-RUN pip install -r /requirements.txt \
- && pip wheel -r /requirements.txt -w /deps
+RUN pip install --no-cache-dir -r /requirements.txt \
+ && pip wheel --no-cache-dir -r /requirements.txt -w /deps
 
 COPY Dockerfile /
 RUN hadolint /Dockerfile
diff --git a/app/Dockerfile b/app/Dockerfile
index 9af1b4fc..add30d71 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -9,9 +9,8 @@ ENV PYTHONUNBUFFERED 1
 
 COPY . /app/
 
-RUN apk add -U bash python3 python3-dev libpq postgresql-dev unixodbc-dev musl-dev g++ libffi-dev \
-  && pip3 install --upgrade pip setuptools \
+RUN apk add -U --no-cache bash python3 python3-dev libpq postgresql-dev unixodbc-dev musl-dev g++ libffi-dev \
+  && pip3 install --upgrade --no-cache-dir pip setuptools \
   && pip3 install --no-cache-dir -r requirements.txt \
   && ln -s /usr/bin/python3 /usr/bin/python \
-  && apk del python3-dev postgresql-dev unixodbc-dev musl-dev g++ libffi-dev
-
+  && apk del --no-cache python3-dev postgresql-dev unixodbc-dev musl-dev g++ libffi-dev
diff --git a/app/tools/dev-django.sh b/app/tools/dev-django.sh
index 384795c2..d7df8c3c 100755
--- a/app/tools/dev-django.sh
+++ b/app/tools/dev-django.sh
@@ -10,12 +10,12 @@ if [[ ! -f "${venv}/bin/python" ]]; then
   echo "Creating virtualenv"
   mkdir -p "${venv}"
   python3 -m venv "${venv}"
-  "${venv}/bin/pip" install --upgrade pip setuptools
+  "${venv}/bin/pip" install --upgrade --no-cache-dir pip setuptools
 fi
 
 echo "Installing dependencies"
 apt-get update && apt-get install -y g++ unixodbc-dev # pyodbc build dependencies
-"${venv}/bin/pip" install -r "${app}/requirements.txt"
+"${venv}/bin/pip" install --no-cache-dir -r "${app}/requirements.txt"
 
 echo "Initializing database"
 "${venv}/bin/python" "${app}/manage.py" wait_for_db
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 66e68674..e68d9dc7 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -4,8 +4,8 @@ WORKDIR /app
 
 COPY . /app/
 
-RUN apk add -U git python3 make g++ \
+RUN apk add -U --no-cache git python3 make g++ \
   && npm install -g npm@latest \
   && npm install \
   && npm run build \
-  && apk del git make g++
+  && apk del --no-cache git make g++
diff --git a/tools/dev-django.sh b/tools/dev-django.sh
index b953fd75..16669cea 100755
--- a/tools/dev-django.sh
+++ b/tools/dev-django.sh
@@ -10,12 +10,12 @@ if [[ ! -f "${venv}/bin/python" ]]; then
   echo "Creating virtualenv"
   mkdir -p "${venv}"
   python3 -m venv "${venv}"
-  "${venv}/bin/pip" install --upgrade pip setuptools
+  "${venv}/bin/pip" install --upgrade --no-cache-dir pip setuptools
 fi
 
 echo "Installing dependencies"
 apt-get update && apt-get install -y g++ unixodbc-dev # pyodbc build dependencies
-"${venv}/bin/pip" install -r "${root}/requirements.txt"
+"${venv}/bin/pip" install --no-cache-dir -r "${root}/requirements.txt"
 
 echo "Initializing database"
 "${venv}/bin/python" "${app}/manage.py" wait_for_db