diff --git a/Dockerfile b/Dockerfile
index 074673f..73b0bfa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN make swagger && make build
 #################################
 # Runtime
 #################################
-FROM alpine:3.20
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1
 
 RUN apk add --no-cache ca-certificates tzdata \
  && addgroup -S app && adduser -S app -G app