diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index b9c5df68456..afbc1c63a35 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -36,7 +36,7 @@ janus==1.0.0
 Jinja2==3.1.3
 lru-dict==1.3.0
 mutagen==1.47.0
-orjson==3.9.14
+orjson==3.9.15
 packaging>=23.1
 paho-mqtt==1.6.1
 Pillow==10.2.0
diff --git a/pyproject.toml b/pyproject.toml
index fb6831f0132..c6d10f768eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ dependencies    = [
     "cryptography==42.0.2",
     # pyOpenSSL 23.2.0 is required to work with cryptography 41+
     "pyOpenSSL==24.0.0",
-    "orjson==3.9.14",
+    "orjson==3.9.15",
     "packaging>=23.1",
     "pip>=21.3.1",
     "python-slugify==8.0.1",
diff --git a/requirements.txt b/requirements.txt
index 76ca93d998d..215df08339d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ lru-dict==1.3.0
 PyJWT==2.8.0
 cryptography==42.0.2
 pyOpenSSL==24.0.0
-orjson==3.9.14
+orjson==3.9.15
 packaging>=23.1
 pip>=21.3.1
 python-slugify==8.0.1