diff --git a/genomel/docker/variant_calling/post_freebayes/Dockerfile b/genomel/docker/variant_calling/post_freebayes/Dockerfile
index 709a5639..0a4cd6de 100644
--- a/genomel/docker/variant_calling/post_freebayes/Dockerfile
+++ b/genomel/docker/variant_calling/post_freebayes/Dockerfile
@@ -1,3 +1,3 @@
-FROM python:3.5
+FROM python:3.13.0b4
 RUN pip install pysam
 ADD pysam_vcf_check.py /opt/
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