diff --git a/pyproject.toml b/pyproject.toml
index f77c2f15103..2b71a29257e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ requires = [
     "setuptools>=51.0",
     "sphinx",
     "wheel",
-    "trubar>=0.3.3"
+    "trubar>=0.3.4"
 ]
 
 build-backend = "setuptools.build_meta"