diff --git a/pyproject.toml b/pyproject.toml
index afa031c..a500b5f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,9 +3,9 @@ name = "cratedb-sqlparse-generator"
 version = "0.0.1"
 description = "Dependencies to build and generate cratedb-sqlparse parsers; same for all target languages"
 readme = "README.md"
-requires-python = ">=3.12"
+requires-python = ">=3.10"
 dependencies = [
-    "antlr4-tools>=0.2.1",
-    "requests>=2.32.3",
+    "antlr4-tools<0.3",
+    "requests<3",
 ]
 tool.uv.package = false