diff --git a/deployment/docker/Makefile b/deployment/docker/Makefile
index bfe12673ac..9965af49ce 100644
--- a/deployment/docker/Makefile
+++ b/deployment/docker/Makefile
@@ -2,8 +2,8 @@
 
 DOCKER_NAMESPACE := victoriametrics
 
-ROOT_IMAGE ?= alpine:3.18.4
-CERTS_IMAGE := alpine:3.18.4
+ROOT_IMAGE ?= alpine:3.18.5
+CERTS_IMAGE := alpine:3.18.5
 
 GO_BUILDER_IMAGE := golang:1.21.4-alpine
 BUILDER_IMAGE := local/builder:2.0.0-$(shell echo $(GO_BUILDER_IMAGE) | tr :/ __)-1
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index eb3a6c273b..6ccb5bfce2 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -15,6 +15,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
 
 ## v1.87.x long-time support release (LTS)
 
+* SECURITY: upgrade base docker image (Alpine) from 3.18.4 to 3.18.5. See [alpine 3.18.5 release notes](https://www.alpinelinux.org/posts/Alpine-3.15.11-3.16.8-3.17.6-3.18.5-released.html).
 
 ## [v1.87.11](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.11)