diff --git a/pkgs/development/python-modules/langchain-perplexity/default.nix b/pkgs/development/python-modules/langchain-perplexity/default.nix
index f796254e8d9d..1121df1d6dd0 100644
--- a/pkgs/development/python-modules/langchain-perplexity/default.nix
+++ b/pkgs/development/python-modules/langchain-perplexity/default.nix
@@ -68,6 +68,7 @@ buildPythonPackage (finalAttrs: {
     skipBulkUpdate = true;
     updateScript = gitUpdater {
       rev-prefix = "langchain-perplexity==";
+      ignoredVersions = "a|b|dev|rc";
     };
   };