diff --git a/requirements.txt b/requirements.txt
index 4b5dcfc1c..c29798889 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 requests>=2.6.1
 ruamel.yaml>=0.16.0,<0.19
-rdflib>=4.2.2,<7.4
+rdflib>=4.2.2,<7.5
 schema-salad>=8.9,<9
 prov==1.5.1
 mypy-extensions
diff --git a/setup.py b/setup.py
index 641671812..c67ffacd4 100644
--- a/setup.py
+++ b/setup.py
@@ -150,7 +150,7 @@ def _find_package_data(base: str, globs: list[str], root: str = "cwltool") -> li
         "requests >= 2.6.1",  # >= 2.6.1 to workaround
         # https://github.com/ionrock/cachecontrol/issues/137
         "ruamel.yaml >= 0.16, < 0.19",
-        "rdflib >= 4.2.2, < 7.4.0",
+        "rdflib >= 4.2.2, < 7.5.0",
         "schema-salad >= 8.9, < 9",
         "prov == 1.5.1",
         "mypy-extensions",