diff --git a/pyproject.toml b/pyproject.toml
index 41b51d8..56692a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,8 +9,10 @@ license = {file = "LICENSE"}
 readme = "README.md"
 requires-python = ">= 3.8.1"
 dependencies = [
-    "presidio-analyzer",
-    "presidio-anonymizer",
+    "presidio-analyzer==2.2.354",
+    "presidio-anonymizer==2.2.354",
+    "numpy==1.26.4",
+    "spacy==3.7.4",
     "guardrails-ai>=0.4.0"
 ]
 
@@ -29,4 +31,5 @@ testpaths = [
 ]
 
 [tool.pyright]
-include = ["validator"]
\ No newline at end of file
+include = ["validator"]
+