diff --git a/pkgs/development/python-modules/pymodes/default.nix b/pkgs/development/python-modules/pymodes/default.nix
index 6576479e12eb..ce88dc8ba6cf 100644
--- a/pkgs/development/python-modules/pymodes/default.nix
+++ b/pkgs/development/python-modules/pymodes/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "pymodes";
-  version = "2.19";
+  version = "2.20";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "junzis";
     repo = "pyModeS";
     tag = "v${version}";
-    hash = "sha256-rVxqtT/sBFQM2Y+GPR2Tc5J2skavvjxwPB7paDBqYRQ=";
+    hash = "sha256-BC1GLQW0/UBVwx3346mZsXSREGeVS+GhqH2Rl2faUoY=";
   };
 
   build-system = [
@@ -43,7 +43,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Python Mode-S and ADS-B Decoder";
     homepage = "https://github.com/junzis/pyModeS";
-    changelog = "https://github.com/junzis/pyModeS/releases/tag/v${version}";
+    changelog = "https://github.com/junzis/pyModeS/releases/tag/${src.tag}";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ snicket2100 ];
   };