diff --git a/.github/workflows/http3-linux.yml b/.github/workflows/http3-linux.yml
index d736beb405..25ba6f9b6b 100644
--- a/.github/workflows/http3-linux.yml
+++ b/.github/workflows/http3-linux.yml
@@ -52,7 +52,7 @@ env:
   # renovate: datasource=github-tags depName=ngtcp2/nghttp3 versioning=semver registryUrl=https://github.com
   NGHTTP3_VERSION: 1.11.0
   # renovate: datasource=github-tags depName=ngtcp2/ngtcp2 versioning=semver registryUrl=https://github.com
-  NGTCP2_VERSION: 1.14.0
+  NGTCP2_VERSION: 1.15.0
   # renovate: datasource=github-tags depName=nghttp2/nghttp2 versioning=semver registryUrl=https://github.com
   NGHTTP2_VERSION: 1.66.0
   # renovate: datasource=github-tags depName=cloudflare/quiche versioning=semver registryUrl=https://github.com