diff --git a/pyproject.toml b/pyproject.toml
index 013ca16..9cd7a6a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ license = {text = "Apache-2.0"}
 readme = "README.md"
 requires-python = ">=3.10,<3.15"
 dependencies = [
-    "protobuf >=5,<7",
+    "protobuf >=5,<8",
     "substrait-protobuf==0.106.0",
     "substrait-extensions==0.106.0",
 ]
diff --git a/uv.lock b/uv.lock
index f271b8e..1b5a796 100644
--- a/uv.lock
+++ b/uv.lock
@@ -524,7 +524,7 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "deepdiff", marker = "extra == 'sql'" },
-    { name = "protobuf", specifier = ">=5,<7" },
+    { name = "protobuf", specifier = ">=5,<8" },
     { name = "pyyaml", marker = "extra == 'extensions'" },
     { name = "sqloxide", marker = "extra == 'sql'" },
     { name = "substrait-antlr", marker = "extra == 'extensions'", specifier = "==0.106.0" },