diff --git a/Dockerfile b/Dockerfile
index 2a6343b6a..24e7d1aff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # ===================================
 # ===== Authelia official image =====
 # ===================================
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/Dockerfile.coverage b/Dockerfile.coverage
index 0b43f5ae3..88a60f1e9 100644
--- a/Dockerfile.coverage
+++ b/Dockerfile.coverage
@@ -46,7 +46,7 @@ RUN \
 # ===================================
 # ===== Authelia official image =====
 # ===================================
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 RUN apk --no-cache add ca-certificates tzdata
 
diff --git a/Dockerfile.dev b/Dockerfile.dev
index 81d51cc97..1d0e5637f 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -43,7 +43,7 @@ RUN \
 # ===================================
 # ===== Authelia official image =====
 # ===================================
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 WORKDIR /app
 
diff --git a/internal/suites/example/compose/samba/Dockerfile b/internal/suites/example/compose/samba/Dockerfile
index dda5d4556..3efa7af45 100644
--- a/internal/suites/example/compose/samba/Dockerfile
+++ b/internal/suites/example/compose/samba/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 RUN \
 apk add --no-cache \