diff --git a/pkgs/development/python-modules/awkward-cpp/default.nix b/pkgs/development/python-modules/awkward-cpp/default.nix
index fd56d8742eff..2e5393c32117 100644
--- a/pkgs/development/python-modules/awkward-cpp/default.nix
+++ b/pkgs/development/python-modules/awkward-cpp/default.nix
@@ -11,13 +11,13 @@
 
 buildPythonPackage rec {
   pname = "awkward-cpp";
-  version = "50";
+  version = "51";
   pyproject = true;
 
   src = fetchPypi {
     pname = "awkward_cpp";
     inherit version;
-    hash = "sha256-JktvtOgqzBBXtbL/DTP6vDYQMlKOIzgVzSIkxtvJbY4=";
+    hash = "sha256-jHTo+fslAXZtGw+fLrh3fjhEEdM1NKj6Zn1WWZIjoEs=";
   };
 
   build-system = [
diff --git a/pkgs/development/python-modules/awkward/default.nix b/pkgs/development/python-modules/awkward/default.nix
index a7b5764ec5db..276d23220712 100644
--- a/pkgs/development/python-modules/awkward/default.nix
+++ b/pkgs/development/python-modules/awkward/default.nix
@@ -24,14 +24,14 @@
 
 buildPythonPackage rec {
   pname = "awkward";
-  version = "2.8.10";
+  version = "2.8.11";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "scikit-hep";
     repo = "awkward";
     tag = "v${version}";
-    hash = "sha256-zECnqZapgvB9ngkoAwEDFMyebFbE0iJ7Yo/5iLcmRXs=";
+    hash = "sha256-76DeL/KIna8Hd9eukCzuRXKO+awkbpc4trCeKTSfGmA=";
   };
 
   build-system = [