diff --git a/pkgs/development/tools/database/pyrseas/default.nix b/pkgs/development/tools/database/pyrseas/default.nix
index 075cd5053beb..930078b2dc72 100644
--- a/pkgs/development/tools/database/pyrseas/default.nix
+++ b/pkgs/development/tools/database/pyrseas/default.nix
@@ -1,13 +1,13 @@
 { lib, pythonPackages, fetchFromGitHub }:
 
 let
-  pgdbconn = pythonPackages.buildPythonPackage {
+  pgdbconn = pythonPackages.buildPythonPackage rec {
     pname = "pgdbconn";
     version = "0.8.0";
     src = fetchFromGitHub {
       owner = "perseas";
       repo = "pgdbconn";
-      rev = "26c1490e4f32e4b5b925e5b82014ad106ba5b057";
+      rev = "v${version}";
       sha256 = "09r4idk5kmqi3yig7ip61r6js8blnmac5n4q32cdcbp1rcwzdn6z";
     };
     # The tests are impure (they try to access a PostgreSQL server)