diff --git a/packages/safe-chain/src/registryProxy/interceptors/pip/pipMetadataVersionUtils.js b/packages/safe-chain/src/registryProxy/interceptors/pip/pipMetadataVersionUtils.js
index 28aaaf6..938b149 100644
--- a/packages/safe-chain/src/registryProxy/interceptors/pip/pipMetadataVersionUtils.js
+++ b/packages/safe-chain/src/registryProxy/interceptors/pip/pipMetadataVersionUtils.js
@@ -121,5 +121,5 @@ function tokenizeVersion(version) {
  * @returns {boolean}
  */
 function isPrerelease(version) {
-  return /(?:^|[.\-_])(a|b|rc|dev)\d*/i.test(version);
+  return /(a|b|rc|dev)\d+/i.test(version);
 }