diff --git a/Dockerfile b/Dockerfile
index 201db87..63aa547 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ COPY ./data/ /opt/TFG/data/
 
 WORKDIR /opt/TFG/src/
 RUN pip install --no-cache-dir pipenv \
+    && python3 -m pipenv lock \
     && python3 -m pipenv requirements > requirements.txt \
     && pip install --no-cache-dir -r requirements.txt \
     && touch .env \
diff --git a/src/Pipfile b/src/Pipfile
index 434a430..3b3580d 100644
--- a/src/Pipfile
+++ b/src/Pipfile
@@ -18,4 +18,4 @@ lorem-text = "*"
 coverage = "*"
 
 [requires]
-python_version = "3.9"
+python_version = "3.10"