diff --git a/docker/Dockerfile b/docker/Dockerfile
index fd98735d..9f8f4033 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,6 @@
-# https://github.com/openssl/openssl/releases/tag/openssl-3.6.3
-ARG OPENSSL_VERSION='3.6.3'
-ARG OPENSSL_SHA256='243a86649cf6f23eeb6a2ff2456e09e5d77dd9018a54d3d96b0c6bdd6ba6c7f1'
+# https://github.com/openssl/openssl/releases/tag/openssl-3.6.4
+ARG OPENSSL_VERSION='3.6.4'
+ARG OPENSSL_SHA256='9bffaa1ad1e07b354c21bd3324ec02fa15579f45a7d0494b3e74bc449b7333ef'
 
 FROM 84codes/crystal:1.21.0-alpine AS dependabot-crystal