diff --git a/cmd/start/main.go b/cmd/start/main.go
index b3cb3fbf..f503857c 100644
--- a/cmd/start/main.go
+++ b/cmd/start/main.go
@@ -13,7 +13,10 @@ import (
 	"github.com/fly-apps/postgres-flex/internal/supervisor"
 )
 
+var version = "(devel)"
+
 func main() {
+	log.Printf("Starting postgres-flex %s.", version)
 	log.SetFlags(0)
 
 	requiredPasswords := []string{"SU_PASSWORD", "OPERATOR_PASSWORD", "REPL_PASSWORD"}
diff --git a/pg15/Dockerfile b/pg15/Dockerfile
index 9611a1e5..46deb905 100644
--- a/pg15/Dockerfile
+++ b/pg15/Dockerfile
@@ -4,6 +4,8 @@ ARG VERSION=custom
 
 FROM golang:1.23
 
+ARG VERSION
+
 WORKDIR /go/src/github.com/fly-apps/fly-postgres
 COPY . .
 
@@ -14,7 +16,7 @@ RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start_monitor ./cmd/monitor
 RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start_admin_server ./cmd/admin_server
 RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/flexctl ./cmd/flexctl
 
-RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start ./cmd/start
+RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start -ldflags="-X main.version=${VERSION}" ./cmd/start
 
 COPY ./bin/* /fly/bin/
 
diff --git a/pg15/Dockerfile-timescaledb b/pg15/Dockerfile-timescaledb
index 78c69425..45603122 100644
--- a/pg15/Dockerfile-timescaledb
+++ b/pg15/Dockerfile-timescaledb
@@ -4,6 +4,8 @@ ARG VERSION=custom
 
 FROM golang:1.23
 
+ARG VERSION
+
 WORKDIR /go/src/github.com/fly-apps/fly-postgres
 COPY . .
 
@@ -14,7 +16,7 @@ RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start_monitor ./cmd/monitor
 RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start_admin_server ./cmd/admin_server
 RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/flexctl ./cmd/flexctl
 
-RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start ./cmd/start
+RUN CGO_ENABLED=0 GOOS=linux go build -v -o /fly/bin/start -ldflags="-X main.version=${VERSION}" ./cmd/start
 
 COPY ./bin/* /fly/bin/
 
diff --git a/pg16/Dockerfile b/pg16/Dockerfile
index 0ec89145..2b873063 100644
--- a/pg16/Dockerfile
+++ b/pg16/Dockerfile
@@ -4,6 +4,8 @@ ARG VERSION=custom
 
 FROM golang:1.23 AS builder
 
+ARG VERSION
+
 WORKDIR /go/src/github.com/fly-apps/fly-postgres
 COPY . .
 
@@ -13,7 +15,7 @@ RUN CGO_ENABLED=0 GOOS=linux \
     go build -v -o /fly/bin/pg_unregister ./cmd/pg_unregister && \
     go build -v -o /fly/bin/start_monitor ./cmd/monitor && \
     go build -v -o /fly/bin/start_admin_server ./cmd/admin_server && \
-    go build -v -o /fly/bin/start ./cmd/start && \
+    go build -v -o /fly/bin/start -ldflags="-X main.version=${VERSION}" ./cmd/start && \
     go build -v -o /fly/bin/flexctl ./cmd/flexctl
 
 
diff --git a/pg16/Dockerfile-timescaledb b/pg16/Dockerfile-timescaledb
index cdb92ebb..30908c88 100644
--- a/pg16/Dockerfile-timescaledb
+++ b/pg16/Dockerfile-timescaledb
@@ -4,6 +4,8 @@ ARG VERSION=custom
 
 FROM golang:1.23 AS builder
 
+ARG VERSION
+
 WORKDIR /go/src/github.com/fly-apps/fly-postgres
 COPY . .
 
@@ -13,7 +15,7 @@ RUN CGO_ENABLED=0 GOOS=linux \
     go build -v -o /fly/bin/pg_unregister ./cmd/pg_unregister && \
     go build -v -o /fly/bin/start_monitor ./cmd/monitor && \
     go build -v -o /fly/bin/start_admin_server ./cmd/admin_server && \
-    go build -v -o /fly/bin/start ./cmd/start && \
+    go build -v -o /fly/bin/start -ldflags="-X main.version=${VERSION}" ./cmd/start && \
     go build -v -o /fly/bin/flexctl ./cmd/flexctl