diff --git a/pyproject.toml b/pyproject.toml
index bb33cf8..cf42cd6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ name = "sd-webui-prompt-postprocessor"
 description = "Stable Diffusion WebUI & ComfyUI extension to post-process the prompt. Features include: wildcards, sending content from the prompt to the negative prompt, variables, model detection, extranetwork mapping, cleanup."
 version = "3.2.1"
 license = { file = "LICENSE.txt" }
-dependencies = ["lark", "numpy", "ruamel.yaml", "pydantic"]
+dependencies = ["lark==1.*", "numpy==2.*", "ruamel.yaml==0.*", "pydantic==2.*"]
 requires-python = ">=3.10"
 
 [project.urls]
diff --git a/requirements.txt b/requirements.txt
index 08b174e..7913722 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-lark
-numpy
-ruamel.yaml
-pydantic
+lark==1.*
+numpy==2.*
+ruamel.yaml==0.*
+pydantic==2.*
\ No newline at end of file