diff --git a/pkgs/tools/backup/s3ql/default.nix b/pkgs/tools/backup/s3ql/default.nix
index f67b5467078c..00d3b427d60e 100644
--- a/pkgs/tools/backup/s3ql/default.nix
+++ b/pkgs/tools/backup/s3ql/default.nix
@@ -2,13 +2,13 @@
 
 python3Packages.buildPythonApplication rec {
   pname = "s3ql";
-  version = "3.7.2";
+  version = "3.7.3";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = "release-${version}";
-    sha256 = "11f8k5vzfq69slzv17vddj135mzlcpmcj3cj3bigq717qb8vd6wl";
+    sha256 = "042fvkvranfnv2xxxz9d92cgia14p1hwmpjgm0rr94pjd36n1sfs";
   };
 
   checkInputs = [ which ] ++ (with python3Packages; [ cython pytest pytest-trio ]);