diff --git a/.github/workflows/BuildDeploy.yml b/.github/workflows/BuildDeploy.yml
index a8fe0d2..8db95af 100644
--- a/.github/workflows/BuildDeploy.yml
+++ b/.github/workflows/BuildDeploy.yml
@@ -300,6 +300,10 @@ jobs:
           fi
           sleep 20
 
+          if ! command -v python3 >/dev/null 2>&1; then
+            apt-get update && apt-get install -y --no-install-recommends python3
+          fi
+
           OTP="$(python3 -c 'import os,hmac,hashlib,base64,struct,time;from urllib.parse import urlparse,parse_qs;q=parse_qs(urlparse(os.environ["CERTUM_OTP_URI"]).query);s=q["secret"][0];digits=int(q.get("digits",["6"])[0]);period=int(q.get("period",["30"])[0]);algo={"SHA1":hashlib.sha1,"SHA256":hashlib.sha256,"SHA512":hashlib.sha512}[q.get("algorithm",["SHA1"])[0].upper()];key=base64.b32decode(s+"="*((8-len(s)%8)%8));h=hmac.new(key,struct.pack(">Q",int(time.time()//period)),algo).digest();o=h[-1]&0xF;print(str((int.from_bytes(h[o:o+4],"big")&0x7fffffff)%(10**digits)).zfill(digits))')"
           echo "::add-mask::$OTP"