diff --git a/pkgs/by-name/we/weblate/package.nix b/pkgs/by-name/we/weblate/package.nix
index 352bf4872b0e..7f15172322a6 100644
--- a/pkgs/by-name/we/weblate/package.nix
+++ b/pkgs/by-name/we/weblate/package.nix
@@ -94,6 +94,7 @@ python3Packages.buildPythonApplication (finalAttrs: {
   pythonRelaxDeps = [
     "certifi"
     "crispy-bootstrap5"
+    "dateparser"
   ];
 
   dependencies =
diff --git a/pkgs/development/python-modules/dateparser/default.nix b/pkgs/development/python-modules/dateparser/default.nix
index 9261412cbca9..48f708494245 100644
--- a/pkgs/development/python-modules/dateparser/default.nix
+++ b/pkgs/development/python-modules/dateparser/default.nix
@@ -22,7 +22,7 @@
 
 buildPythonPackage rec {
   pname = "dateparser";
-  version = "1.3.0";
+  version = "1.4.0";
 
   pyproject = true;
 
@@ -30,7 +30,7 @@ buildPythonPackage rec {
     owner = "scrapinghub";
     repo = "dateparser";
     tag = "v${version}";
-    hash = "sha256-X15zNHlF34+8Lmo6Ia3HyKOdfgsu76KbcJUxzHax0EE=";
+    hash = "sha256-CmcQf0cGcZVmZfpLSYDGdZUj83T7enNRl9FTY1Q6vtk=";
   };
 
   build-system = [ setuptools ];