diff --git a/ci/windows/conanfile_windows.txt b/ci/windows/conanfile_windows.txt
index cb4bc35ada..951bca0bdf 100644
--- a/ci/windows/conanfile_windows.txt
+++ b/ci/windows/conanfile_windows.txt
@@ -1,7 +1,7 @@
 [requires]
 zlib/1.2.11
 libpcap/1.10.1
-c-ares/1.18.1
+c-ares/1.21.0
 
 [generators]
 cmake_find_package