diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 949181c7ddd..0994ca657ba 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -30,7 +30,7 @@ janus==1.0.0
 Jinja2==3.1.2
 lru-dict==1.2.0
 mutagen==1.46.0
-orjson==3.9.4
+orjson==3.9.2
 packaging>=23.1
 paho-mqtt==1.6.1
 Pillow==10.0.0
diff --git a/pyproject.toml b/pyproject.toml
index 6ea19a77c4a..8f5b5c788fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies    = [
     "cryptography==41.0.3",
     # pyOpenSSL 23.2.0 is required to work with cryptography 41+
     "pyOpenSSL==23.2.0",
-    "orjson==3.9.4",
+    "orjson==3.9.2",
     "packaging>=23.1",
     "pip>=21.3.1",
     "python-slugify==4.0.1",
diff --git a/requirements.txt b/requirements.txt
index 10220697390..e7a3b0fc4c5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ lru-dict==1.2.0
 PyJWT==2.8.0
 cryptography==41.0.3
 pyOpenSSL==23.2.0
-orjson==3.9.4
+orjson==3.9.2
 packaging>=23.1
 pip>=21.3.1
 python-slugify==4.0.1