diff --git a/pyproject.toml b/pyproject.toml
index 99b45e152..11f8a25e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ dependencies = [
   "substrate-interface==1.8.1",
   "types-aiofiles==25.1.0.20260409",
   "typing-extensions==4.15.0",
-  "ujson==5.12.0",                                                                                                         # required by aiocache
+  "ujson==5.12.1",                                                                                                         # required by aiocache
   "urllib3==2.6.3",
   "uvloop>=0.21,<0.22",                                                                                                    # Pinned to 0.21 as long as we use aiohttp v3.13.3, new version should fix compatibility
   "web3==7.15.0",