diff --git a/Dockerfile b/Dockerfile
index be5525c8c..66674387e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,7 +40,7 @@ ARG GIT_REVISION=unknown
 ENV GIT_REVISION=${GIT_REVISION}
 RUN cargo build --release -p janus_aggregator --features=prometheus,otlp
 
-FROM alpine:3.20.3 AS final
+FROM alpine:3.21.0 AS final
 ARG BINARY=aggregator
 ARG GIT_REVISION=unknown
 LABEL revision=${GIT_REVISION}
diff --git a/Dockerfile.interop b/Dockerfile.interop
index 6dbd1ed95..8e1e498f7 100644
--- a/Dockerfile.interop
+++ b/Dockerfile.interop
@@ -42,7 +42,7 @@ COPY tools /src/tools
 COPY xtask /src/xtask
 RUN cargo build --features fpvec_bounded_l2 --profile $PROFILE -p janus_interop_binaries
 
-FROM alpine:3.20.3 AS final
+FROM alpine:3.21.0 AS final
 ARG BINARY
 ARG PROFILE
 RUN mkdir /logs
diff --git a/Dockerfile.sqlx b/Dockerfile.sqlx
index f0c1cb9f9..3148859e9 100644
--- a/Dockerfile.sqlx
+++ b/Dockerfile.sqlx
@@ -6,7 +6,7 @@ RUN cargo install sqlx-cli \
     --version ${SQLX_VERSION} \
     --no-default-features --features rustls,postgres
 
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 ARG SQLX_VERSION=unknown
 ARG GIT_REVISION=unknown
 LABEL revision=${GIT_REVISION}