diff --git a/.github/workflows/http3-linux.yml b/.github/workflows/http3-linux.yml
index 8020e41d14..c5e1cb85da 100644
--- a/.github/workflows/http3-linux.yml
+++ b/.github/workflows/http3-linux.yml
@@ -44,7 +44,7 @@ env:
   # renovate: datasource=github-tags depName=libressl/portable versioning=semver registryUrl=https://github.com
   LIBRESSL_VERSION: 4.2.1
   # renovate: datasource=github-tags depName=awslabs/aws-lc versioning=semver registryUrl=https://github.com
-  AWSLC_VERSION: 1.65.1
+  AWSLC_VERSION: 1.66.2
   # renovate: datasource=github-tags depName=google/boringssl versioning=semver registryUrl=https://github.com
   BORINGSSL_VERSION: 0.20251124.0
   # renovate: datasource=github-tags depName=gnutls/nettle versioning=semver registryUrl=https://github.com
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e9d918f21a..7f8d870ccf 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -47,7 +47,7 @@ env:
   # renovate: datasource=github-tags depName=Mbed-TLS/mbedtls versioning=semver:^3.0.0 registryUrl=https://github.com
   MBEDTLS_VERSION_PREV: 3.6.4
   # renovate: datasource=github-tags depName=awslabs/aws-lc versioning=semver registryUrl=https://github.com
-  AWSLC_VERSION: 1.65.1
+  AWSLC_VERSION: 1.66.2
   # renovate: datasource=github-tags depName=google/boringssl versioning=semver registryUrl=https://github.com
   BORINGSSL_VERSION: 0.20251124.0
   # handled in renovate.json