diff --git a/distributed/pyproject.toml b/distributed/pyproject.toml
index fc04c6fcc..f61157236 100644
--- a/distributed/pyproject.toml
+++ b/distributed/pyproject.toml
@@ -40,7 +40,7 @@ dependencies = [
     "aiohttp>=3.11.14,<4.0.0",
     "aiofiles>=23.2.1,<24.0.0",
     "rdflib>=7.1.4,<7.2.0",
-    "pypdf>=4.1.0,<6.0.0",
+    "pypdf>=4.1.0,<7.0.0",
     "jinja2>=3.1.3,<4",
     "matplotlib>=3.8.3,<4",
     "networkx>=3.4.2,<4",
diff --git a/pyproject.toml b/pyproject.toml
index 272c8e929..5e22b1eb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ dependencies = [
     "aiohttp>=3.11.14,<4.0.0",
     "aiofiles>=23.2.1,<24.0.0",
     "rdflib>=7.1.4,<7.2.0",
-    "pypdf>=4.1.0,<6.0.0",
+    "pypdf>=4.1.0,<7.0.0",
     "jinja2>=3.1.3,<4",
     "matplotlib>=3.8.3,<4",
     "networkx>=3.4.2,<4",