diff --git a/sdk/pyproject.toml b/sdk/pyproject.toml
index baaf6ff05..0fe88d1bd 100644
--- a/sdk/pyproject.toml
+++ b/sdk/pyproject.toml
@@ -36,7 +36,7 @@ classifiers = [
 ]
 requires-python = ">=3.9"
 dependencies = [
-    "lxml>=4.2,<5",
+    "lxml>=5.3",
     "python-dateutil>=2.8,<3",
     "pyecma376-2>=1.0.1",
     "urllib3>=1.26,<3",
@@ -45,7 +45,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "mypy",
+    "mypy==1.15.0",
     "pycodestyle",
     "codeblocks",
     "coverage",