diff --git a/console logger/dockerfile b/console logger/dockerfile
index 67a9cbb..c6827ea 100644
--- a/console logger/dockerfile	
+++ b/console logger/dockerfile	
@@ -1,10 +1,24 @@
-FROM python:3.11.1-slim-buster
+# Dependency-building stage.
+FROM python:3.11.1-slim-buster AS build
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONIOENCODING=UTF-8
 
 WORKDIR /app
+RUN python3 -m venv env
+ENV PATH="env/bin:$PATH"
+
+COPY requirements.txt .
+RUN python3 -m pip install -r requirements.txt
+
+# Runtime stage.
+FROM python:3.11.1-slim-buster AS runtime
+
+WORKDIR /app
+COPY --from=build /app/env /app/env
+ENV PATH="env/bin:$PATH"
+
 COPY . .
-RUN find | grep requirements.txt | xargs -I '{}' python3 -m pip install -r '{}' --extra-index-url https://pkgs.dev.azure.com/quix-analytics/53f7fe95-59fe-4307-b479-2473b96de6d1/_packaging/public/pypi/simple/
-ENTRYPOINT ["python3", "main.py"]
\ No newline at end of file
+
+ENTRYPOINT ["env/bin/python3", "main.py"]
diff --git a/csv data source/dockerfile b/csv data source/dockerfile
index 67a9cbb..c6827ea 100644
--- a/csv data source/dockerfile	
+++ b/csv data source/dockerfile	
@@ -1,10 +1,24 @@
-FROM python:3.11.1-slim-buster
+# Dependency-building stage.
+FROM python:3.11.1-slim-buster AS build
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONIOENCODING=UTF-8
 
 WORKDIR /app
+RUN python3 -m venv env
+ENV PATH="env/bin:$PATH"
+
+COPY requirements.txt .
+RUN python3 -m pip install -r requirements.txt
+
+# Runtime stage.
+FROM python:3.11.1-slim-buster AS runtime
+
+WORKDIR /app
+COPY --from=build /app/env /app/env
+ENV PATH="env/bin:$PATH"
+
 COPY . .
-RUN find | grep requirements.txt | xargs -I '{}' python3 -m pip install -r '{}' --extra-index-url https://pkgs.dev.azure.com/quix-analytics/53f7fe95-59fe-4307-b479-2473b96de6d1/_packaging/public/pypi/simple/
-ENTRYPOINT ["python3", "main.py"]
\ No newline at end of file
+
+ENTRYPOINT ["env/bin/python3", "main.py"]
diff --git a/name counter/dockerfile b/name counter/dockerfile
index 67a9cbb..7a44068 100644
--- a/name counter/dockerfile	
+++ b/name counter/dockerfile	
@@ -1,10 +1,25 @@
-FROM python:3.11.1-slim-buster
+# Dependency-building stage.
+FROM python:3.11.1-slim-buster AS build
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONIOENCODING=UTF-8
 
 WORKDIR /app
+RUN python3 -m venv env
+ENV PATH="env/bin:$PATH"
+
+COPY requirements.txt .
+RUN python3 -m pip install -r requirements.txt
+
+
+# Runtime stage.
+FROM python:3.11.1-slim-buster AS runtime
+
+WORKDIR /app
+COPY --from=build /app/env /app/env
+ENV PATH="env/bin:$PATH"
+
 COPY . .
-RUN find | grep requirements.txt | xargs -I '{}' python3 -m pip install -r '{}' --extra-index-url https://pkgs.dev.azure.com/quix-analytics/53f7fe95-59fe-4307-b479-2473b96de6d1/_packaging/public/pypi/simple/
-ENTRYPOINT ["python3", "main.py"]
\ No newline at end of file
+
+ENTRYPOINT ["env/bin/python3", "main.py"]