diff --git a/pyproject.toml b/pyproject.toml
index 9655c64e0..c92b5c111 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,6 +46,7 @@ dependencies = [
     "typing-extensions==4.15.0",
     "itsdangerous==2.2.0",
     "ingredient-parser-nlp==2.5.0",
+    "pint>=0.25",
 ]
 
 [project.scripts]
diff --git a/uv.lock b/uv.lock
index c582d697d..102713cec 100644
--- a/uv.lock
+++ b/uv.lock
@@ -850,6 +850,7 @@ dependencies = [
     { name = "paho-mqtt" },
     { name = "pillow" },
     { name = "pillow-heif" },
+    { name = "pint" },
     { name = "pydantic" },
     { name = "pydantic-settings" },
     { name = "pyhumps" },
@@ -923,6 +924,7 @@ requires-dist = [
     { name = "paho-mqtt", specifier = "==1.6.1" },
     { name = "pillow", specifier = "==12.1.1" },
     { name = "pillow-heif", specifier = "==1.2.1" },
+    { name = "pint", specifier = ">=0.25" },
     { name = "psycopg2-binary", marker = "extra == 'pgsql'", specifier = "==2.9.11" },
     { name = "pydantic", specifier = "==2.12.5" },
     { name = "pydantic-settings", specifier = "==2.13.1" },