diff --git a/pyproject.toml b/pyproject.toml
index 45f8a366..1c627e09 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ description = "A powerful ComfyUI custom node that extends the standard text enc
 version = "3.4.0"
 license = {file = "LICENSE"}
 requires-python = ">=3.12"
-dependencies = ["watchdog>=2.1.0", "Pillow>=8.0.0"]
+dependencies = ["watchdog>=2.1.0,<7", "Pillow>=8.0.0"]
 
 [build-system]
 requires = ["setuptools>=84.2.1"]
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6db215e2..aa8fbc5a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 # Runtime dependencies
-watchdog>=6.0.0
+watchdog>=6.0.0,<7
 Pillow>=12.3.0
 aiohttp>=3.14.5
 
diff --git a/requirements.txt b/requirements.txt
index f5f32b46..89160017 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 # Runtime dependencies for PromptManager.
 # aiohttp, numpy and torch come from ComfyUI itself and are not listed here.
-watchdog>=2.1.0              # Output directory monitoring
+watchdog>=2.1.0,<7            # Output directory monitoring
 Pillow>=8.0.0                # Image metadata extraction and thumbnails