diff --git a/pkgs/development/python-modules/monotonic/default.nix b/pkgs/development/python-modules/monotonic/default.nix
index b736301e5ef..c784730da6e 100644
--- a/pkgs/development/python-modules/monotonic/default.nix
+++ b/pkgs/development/python-modules/monotonic/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "monotonic";
-  version = "1.3";
+  version = "1.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "06vw7jwq96106plhlc5vz1v1xvjismdgw9wjyzvzf0ylglnrwiib";
+    sha256 = "23953d55076df038541e648a53676fb24980f7a1be290cdda21300b3bc21dfb0";
   };
 
   __propagatedImpureHostDeps = stdenv.lib.optional stdenv.isDarwin "/usr/lib/libc.dylib";