diff --git a/pyproject.toml b/pyproject.toml
index b4286d2..1082f93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
     "uvicorn==0.30.3",
     "paho-mqtt==2.1.0",
     "nats-py==2.15.0",
-    "deepdiff==7.0.1",
+    "deepdiff==9.1.0",
     "xmltodict==0.13.0",
     "panzi-json-logic==1.0.1",
     "pycryptodomex==3.20.0",
diff --git a/requirements.txt b/requirements.txt
index c18b9fb..171c3bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ isodate==0.6.1
 uvicorn==0.30.3
 paho-mqtt==2.1.0
 nats-py==2.15.0
-deepdiff==7.0.1
+deepdiff==9.1.0
 xmltodict==0.13.0
 panzi-json-logic==1.0.1
 pycryptodomex==3.20.0