diff --git a/.docker/Dockerfile.dev.api b/.docker/Dockerfile.dev.api
index 20c339d0b..4014ef6a2 100644
--- a/.docker/Dockerfile.dev.api
+++ b/.docker/Dockerfile.dev.api
@@ -1,4 +1,4 @@
-FROM python:3.8.14-slim-buster
+FROM python:3.9-slim-buster
 
 RUN mkdir /badgr_server
 WORKDIR /badgr_server
diff --git a/.docker/Dockerfile.prod.api b/.docker/Dockerfile.prod.api
index a182bef70..fdf2ca2f4 100644
--- a/.docker/Dockerfile.prod.api
+++ b/.docker/Dockerfile.prod.api
@@ -1,7 +1,7 @@
 # Best practies taken from here: https://snyk.io/blog/best-practices-containerizing-python-docker/
 
 # ------------------------------> Build image
-FROM python:3.8.14-slim-buster as build
+FROM python:3.9-slim-buster as build
 RUN apt-get update
 RUN apt-get install -y default-libmysqlclient-dev \
                        python3-dev \
@@ -20,7 +20,7 @@ COPY requirements.txt .
 RUN pip install -r requirements.txt
 
 # ------------------------------> Final image
-FROM python:3.8.14-slim-buster
+FROM python:3.9-slim-buster
 RUN apt-get update
 RUN apt-get install -y default-libmysqlclient-dev \
                        python3-cairo \
diff --git a/apps/backpack/models.py b/apps/backpack/models.py
index 998e3351b..b1f3afc96 100644
--- a/apps/backpack/models.py
+++ b/apps/backpack/models.py
@@ -2,6 +2,7 @@
 
 import os
 import binascii
+import random
 from collections import OrderedDict
 
 import cachemodel
@@ -76,7 +77,8 @@ def published(self):
     @published.setter
     def published(self, value):
         if value and not self.share_hash:
-            self.share_hash = str(binascii.hexlify(os.urandom(16)), 'utf-8')
+            random.seed(a=self.entity_id)
+            self.share_hash = str(binascii.hexlify(random.randbytes(16)), 'utf-8')
         elif not value and self.share_hash:
             self.publish_delete('share_hash')
             self.share_hash = ''