diff --git a/MODULE.bazel b/MODULE.bazel
index a9c5c14..c7ba716 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -10,7 +10,7 @@ bazel_dep(name = "nlohmann_json", version = "3.11.3")
 bazel_dep(name = "boost.process", version = "1.83.0.bzl.2")
 bazel_dep(name = "boost.asio", version = "1.83.0.bzl.4")
 bazel_dep(name = "boost.url", version = "1.83.0.bzl.2")
-bazel_dep(name = "libdeflate", version = "1.19")
+bazel_dep(name = "libdeflate", version = "1.21")
 bazel_dep(name = "abseil-cpp", version = "20240722.0")
 bazel_dep(name = "boringssl", version = "0.0.0-20240530-2db0eb3")