diff --git a/Dockerfile b/Dockerfile
index 29e45f8..6d30ad4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,20 +1,10 @@
-FROM python:2.7
-
-WORKDIR /usr/src/app
-
-RUN \
-    wget https://mmcif.wwpdb.org/docs/sw-examples/python/src/pdbx.tar.gz && \
-    tar -xzf pdbx.tar.gz && \
-    rm pdbx.tar.gz && \
-    mkdir -p source/python/modules && \
-    mv pdbx source/python/modules
-
-ENV PYTHONPATH "${PYTHONPATH}:/usr/src/app/source/python/modules"
+FROM python:3.11
 
 WORKDIR /rna
 
 ADD . /rna
 
-RUN pip install -r requirements-python-2-7.txt
+RUN python -m pip install .
+RUN pip install biopython
 
 CMD ["/bin/bash"]