diff --git a/pkgs/by-name/py/pyflyby/package.nix b/pkgs/by-name/py/pyflyby/package.nix
index 271402c1a46f..d01a3716458e 100644
--- a/pkgs/by-name/py/pyflyby/package.nix
+++ b/pkgs/by-name/py/pyflyby/package.nix
@@ -4,7 +4,7 @@
   fetchFromGitHub,
 }:
 let
-  version = "1.9.6";
+  version = "1.9.8";
 in
 python3.pkgs.buildPythonApplication rec {
   inherit version;
@@ -14,8 +14,8 @@ python3.pkgs.buildPythonApplication rec {
   src = fetchFromGitHub {
     owner = "deshaw";
     repo = "pyflyby";
-    rev = version;
-    hash = "sha256-QkoFr9tFtZ+ZEWlxe9csrzoYFl9/V2l4hKYfUWsXUdc=";
+    rev = "refs/tags/${version}";
+    hash = "sha256-lMOLdPirPrld/DfX7YPdFJ+4K451aATz4vql4z+lLO0=";
   };
 
   build-system = with python3.pkgs; [