diff --git a/Dockerfile.linux.386 b/Dockerfile.linux.386
index 1e95c9c..3d3821c 100644
--- a/Dockerfile.linux.386
+++ b/Dockerfile.linux.386
@@ -1,4 +1,4 @@
-FROM i386/alpine:3.19 AS build
+FROM i386/alpine:3.20 AS build
 RUN apk add --no-cache ca-certificates
 
 FROM scratch
diff --git a/Dockerfile.linux.amd64 b/Dockerfile.linux.amd64
index b9ee845..7c1e414 100644
--- a/Dockerfile.linux.amd64
+++ b/Dockerfile.linux.amd64
@@ -1,4 +1,4 @@
-FROM amd64/alpine:3.19 AS build
+FROM amd64/alpine:3.20 AS build
 RUN apk add --no-cache ca-certificates
 
 FROM scratch
diff --git a/Dockerfile.linux.arm b/Dockerfile.linux.arm
index af1d2f7..1ee01c6 100644
--- a/Dockerfile.linux.arm
+++ b/Dockerfile.linux.arm
@@ -1,4 +1,4 @@
-FROM arm32v6/alpine:3.19 AS build
+FROM arm32v6/alpine:3.20 AS build
 RUN apk add --no-cache ca-certificates
 
 FROM scratch
diff --git a/Dockerfile.linux.arm64 b/Dockerfile.linux.arm64
index d85e78f..d069499 100644
--- a/Dockerfile.linux.arm64
+++ b/Dockerfile.linux.arm64
@@ -1,4 +1,4 @@
-FROM arm64v8/alpine:3.19 AS build
+FROM arm64v8/alpine:3.20 AS build
 RUN apk add --no-cache ca-certificates
 
 FROM scratch