diff --git a/packages/python-ta-z3/pyproject.toml b/packages/python-ta-z3/pyproject.toml
index 8d25161d2..76a34d1aa 100644
--- a/packages/python-ta-z3/pyproject.toml
+++ b/packages/python-ta-z3/pyproject.toml
@@ -8,7 +8,7 @@ authors = [
 ]
 requires-python = ">=3.10"
 dependencies = [
-    "astroid ~= 4.0.2",
+    "astroid >= 4.0.2,< 4.2.0",
     "z3-solver",
 ]
 
diff --git a/packages/python-ta/pyproject.toml b/packages/python-ta/pyproject.toml
index aafe3f6e4..48d594632 100644
--- a/packages/python-ta/pyproject.toml
+++ b/packages/python-ta/pyproject.toml
@@ -9,7 +9,7 @@ license = {text = "MIT"}
 readme = "README.md"
 dependencies = [
     "aiohttp >= 3.13.0,< 3.14.0",
-    "astroid ~= 4.0.2",
+    "astroid >= 4.0.2,< 4.2.0",
     "black",
     "click >= 8.0.1, < 9",
     "colorama ~= 0.4.6",