diff --git a/1.6/Dockerfile b/1.6/Dockerfile
index 463f301..3dcc56d 100644
--- a/1.6/Dockerfile
+++ b/1.6/Dockerfile
@@ -3,7 +3,7 @@ FROM php:7.3.28-fpm-buster@sha256:7ed61b63f856473365c9e37dc566b9d29164d485d4d14f
 SHELL [ "/bin/bash", "-exo", "pipefail", "-c" ]
 
 # renovate: datasource=github-tags depName=getgrav/grav versioning=semver
-ENV GRAV_VERSION 1.6.31
+ENV GRAV_VERSION 1.7.15
 # renovate: datasource=github-tags depName=krakjoe/apcu versioning=semver
 ENV PHP_APCU_VERSION v5.1.20
 # renovate: datasource=github-tags depName=php/pecl-file_formats-yaml versioning=semver
diff --git a/1.6/Dockerfile.prod b/1.6/Dockerfile.prod
index bc24c23..766e398 100644
--- a/1.6/Dockerfile.prod
+++ b/1.6/Dockerfile.prod
@@ -3,7 +3,7 @@ FROM php:7.3.28-fpm-buster@sha256:7ed61b63f856473365c9e37dc566b9d29164d485d4d14f
 SHELL [ "/bin/bash", "-exo", "pipefail", "-c" ]
 
 # renovate: datasource=github-tags depName=getgrav/grav versioning=semver
-ENV GRAV_VERSION 1.6.31
+ENV GRAV_VERSION 1.7.15
 # renovate: datasource=github-tags depName=krakjoe/apcu versioning=semver
 ENV PHP_APCU_VERSION v5.1.20
 # renovate: datasource=github-tags depName=php/pecl-file_formats-yaml versioning=semver