diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 9e21c5830e4..f56c44d494a 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -45,7 +45,7 @@ ifaddr==0.2.0
 Jinja2==3.1.6
 lru-dict==1.3.0
 mutagen==1.47.0
-orjson==3.10.18
+orjson==3.11.0
 packaging>=23.1
 paho-mqtt==2.1.0
 Pillow==11.3.0
diff --git a/pyproject.toml b/pyproject.toml
index 860b4af379d..6946993e6af 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,7 @@ dependencies = [
   "Pillow==11.3.0",
   "propcache==0.3.2",
   "pyOpenSSL==25.1.0",
-  "orjson==3.10.18",
+  "orjson==3.11.0",
   "packaging>=23.1",
   "psutil-home-assistant==0.0.1",
   "python-slugify==8.0.4",
diff --git a/requirements.txt b/requirements.txt
index 118d2bedfa6..896ff44a3c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ cryptography==45.0.3
 Pillow==11.3.0
 propcache==0.3.2
 pyOpenSSL==25.1.0
-orjson==3.10.18
+orjson==3.11.0
 packaging>=23.1
 psutil-home-assistant==0.0.1
 python-slugify==8.0.4