diff --git a/.ruby-version b/.ruby-version
index ef538c28..9c25013d 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.1.2
+3.3.6
diff --git a/Dockerfile b/Dockerfile
index 00ea8b5f..62a4164a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 
-FROM ruby:3.1.2-alpine@sha256:05b990dbaa3a118f96e9ddbf046f388b3c4953d5ef3d18908af96f42c0e138d9
+FROM ruby:3.3.6-alpine@sha256:70a5df799b7b141cf93fe2d76c733727bfed389f8142f4044279a4541f65b1b2
 
 ARG BUILD_HASH='unknown'
 ENV BUILD_HASH=$BUILD_HASH