diff --git a/distributions/otelcol-contrib/Dockerfile b/distributions/otelcol-contrib/Dockerfile
index 5d6043a4..d053e9f2 100644
--- a/distributions/otelcol-contrib/Dockerfile
+++ b/distributions/otelcol-contrib/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20 as certs
+FROM alpine:3.21 as certs
 RUN apk --update add ca-certificates
 
 FROM scratch
diff --git a/distributions/otelcol-k8s/Dockerfile b/distributions/otelcol-k8s/Dockerfile
index 9a1fcfff..5bfe2d69 100644
--- a/distributions/otelcol-k8s/Dockerfile
+++ b/distributions/otelcol-k8s/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20 as certs
+FROM alpine:3.21 as certs
 RUN apk --update add ca-certificates
 
 FROM scratch
diff --git a/distributions/otelcol-otlp/Dockerfile b/distributions/otelcol-otlp/Dockerfile
index ab8545f4..79e88678 100644
--- a/distributions/otelcol-otlp/Dockerfile
+++ b/distributions/otelcol-otlp/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20 as certs
+FROM alpine:3.21 as certs
 RUN apk --update add ca-certificates
 
 FROM scratch
diff --git a/distributions/otelcol/Dockerfile b/distributions/otelcol/Dockerfile
index 09f62b28..252ae6b2 100644
--- a/distributions/otelcol/Dockerfile
+++ b/distributions/otelcol/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20 as certs
+FROM alpine:3.21 as certs
 RUN apk --update add ca-certificates
 
 FROM scratch