diff --git a/requirements.txt b/requirements.txt
index b1738fd91..bbeb1073c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 requests>=2.4.3
-ruamel.yaml>=0.15,<0.17.17
+ruamel.yaml>=0.15,<0.17.18
 rdflib>=4.2.2,<6.1
 shellescape>=3.4.1,<3.9
 schema-salad>=8.2.20211104054942,<9
diff --git a/setup.py b/setup.py
index f0f213253..89c8d0007 100644
--- a/setup.py
+++ b/setup.py
@@ -108,7 +108,7 @@
         "setuptools",
         "requests >= 2.6.1",  # >= 2.6.1 to workaround
         # https://github.com/ionrock/cachecontrol/issues/137
-        "ruamel.yaml >= 0.15, < 0.17.17",
+        "ruamel.yaml >= 0.15, < 0.17.18",
         "rdflib >= 4.2.2, < 6.1.0",
         "shellescape >= 3.4.1, < 3.9",
         "schema-salad >= 8.2.20211104054942, < 9",