diff --git a/Dockerfile b/Dockerfile
index 03f6690..cc89c74 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN set -ex \
     && deps=' \
         htop \
     ' \
-    && apt-get install -y python3 pip $buildDeps $deps --no-install-recommends  && pip install -r /reqs.txt --break-system-packages
+    && apt-get install -y python3 python3-dev pip $buildDeps $deps --no-install-recommends  && pip install -r /reqs.txt --break-system-packages
 COPY front-update.py /
 COPY mwcrontab /etc/cron.d/mwcrontab
 RUN chmod 0644 /etc/cron.d/mwcrontab
diff --git a/front-update.py b/front-update.py
index f632379..4fb35dd 100644
--- a/front-update.py
+++ b/front-update.py
@@ -15,8 +15,12 @@ import zipfile
 import subprocess
 import json
 from cryptography.fernet import Fernet 
+import psutil
+import sys
 logging.basicConfig(level=logging.INFO)
 
+
+
 log = logging.getLogger("updater")
 log.setLevel(logging.INFO)
 API_URL="http://host.docker.internal:8181"
@@ -116,6 +120,13 @@ def get_version_from_file():
 
 def main():
     while True:
+        pcount=0
+        for process in psutil.process_iter():
+            if '/front-update.py' in process.cmdline():
+                pcount=pcount+1
+        if pcount>=2:
+            print("Already running")
+            exit()
         try:
             next_hour = (time.time() // 3600 + 1) * 3600
             sleep_time = next_hour - time.time()
diff --git a/reqs.txt b/reqs.txt
index f741b6c..cf38a08 100644
--- a/reqs.txt
+++ b/reqs.txt
@@ -1,2 +1,3 @@
 cryptography==3.4.8
-Requests==2.32.2
\ No newline at end of file
+Requests==2.32.2
+psutil==5.9.0
\ No newline at end of file