diff --git a/ansible/roles/gitea-actions/defaults/main.yml b/ansible/roles/gitea-actions/defaults/main.yml
index c958aab..461eff1 100644
--- a/ansible/roles/gitea-actions/defaults/main.yml
+++ b/ansible/roles/gitea-actions/defaults/main.yml
@@ -42,7 +42,7 @@ gitea_ci_registry: git.debyl.io
 gitea_ci_registry_namespace: gitbot
 gitea_ci_image: "{{ gitea_ci_registry }}/{{ gitea_ci_registry_namespace }}/gitea-ci:latest"
 # ESP-IDF firmware image tag tracks the upstream espressif/idf release we build from.
-esp_idf_version: v5.4.1
+esp_idf_version: v5.5.1
 gitea_ci_espidf_image: "{{ gitea_ci_registry }}/{{ gitea_ci_registry_namespace }}/gitea-ci-espidf:{{ esp_idf_version }}"
 # PlatformIO image for Arduino-framework ESP32 builds (esp32-web-interface).
 # Tag tracks the pre-baked espressif32 platform version; both pins match the