diff --git a/ci/resources/stemcell-version-bump/go.mod b/ci/resources/stemcell-version-bump/go.mod
index 717fdebd8..367805bb2 100644
--- a/ci/resources/stemcell-version-bump/go.mod
+++ b/ci/resources/stemcell-version-bump/go.mod
@@ -5,7 +5,7 @@ go 1.24.0
 toolchain go1.24.1
 
 require (
-	cloud.google.com/go/storage v1.56.1
+	cloud.google.com/go/storage v1.56.2
 	github.com/stretchr/testify v1.11.1
 	google.golang.org/api v0.249.0
 )
diff --git a/ci/resources/stemcell-version-bump/go.sum b/ci/resources/stemcell-version-bump/go.sum
index 9c0903d59..2dd23e364 100644
--- a/ci/resources/stemcell-version-bump/go.sum
+++ b/ci/resources/stemcell-version-bump/go.sum
@@ -16,8 +16,8 @@ cloud.google.com/go/longrunning v0.6.7 h1:IGtfDWHhQCgCjwQjV9iiLnUta9LBCo8R9QmAFs
 cloud.google.com/go/longrunning v0.6.7/go.mod h1:EAFV3IZAKmM56TyiE6VAP3VoTzhZzySwI/YI1s/nRsY=
 cloud.google.com/go/monitoring v1.24.2 h1:5OTsoJ1dXYIiMiuL+sYscLc9BumrL3CarVLL7dd7lHM=
 cloud.google.com/go/monitoring v1.24.2/go.mod h1:x7yzPWcgDRnPEv3sI+jJGBkwl5qINf+6qY4eq0I9B4U=
-cloud.google.com/go/storage v1.56.1 h1:n6gy+yLnHn0hTwBFzNn8zJ1kqWfR91wzdM8hjRF4wP0=
-cloud.google.com/go/storage v1.56.1/go.mod h1:C9xuCZgFl3buo2HZU/1FncgvvOgTAs/rnh4gF4lMg0s=
+cloud.google.com/go/storage v1.56.2 h1:DzxQ4ppJe4OSTtZLtCqscC3knyW919eNl0zLLpojnqo=
+cloud.google.com/go/storage v1.56.2/go.mod h1:C9xuCZgFl3buo2HZU/1FncgvvOgTAs/rnh4gF4lMg0s=
 cloud.google.com/go/trace v1.11.6 h1:2O2zjPzqPYAHrn3OKl029qlqG6W8ZdYaOWRyr8NgMT4=
 cloud.google.com/go/trace v1.11.6/go.mod h1:GA855OeDEBiBMzcckLPE2kDunIpC72N+Pq8WFieFjnI=
 github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.29.0 h1:UQUsRi8WTzhZntp5313l+CHIAT95ojUI2lpP/ExlZa4=
diff --git a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/CHANGES.md b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/CHANGES.md
index adb9cc853..f91215387 100644
--- a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/CHANGES.md
+++ b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/CHANGES.md
@@ -1,6 +1,13 @@
 # Changes
 
 
+## [1.56.2](https://github.com/googleapis/google-cloud-go/compare/storage/v1.56.1...storage/v1.56.2) (2025-09-12)
+
+
+### Bug Fixes
+
+* **storage:** Free buffers in Bidi Reader ([#12839](https://github.com/googleapis/google-cloud-go/issues/12839)) ([10c8fac](https://github.com/googleapis/google-cloud-go/commit/10c8faccc2dae2a8177ff30ab16d67413df9f536))
+
 ## [1.56.1](https://github.com/googleapis/google-cloud-go/compare/storage/v1.56.0...storage/v1.56.1) (2025-08-19)
 
 
diff --git a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/grpc_client.go b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/grpc_client.go
index 5850bcc1c..2ba4d5bbe 100644
--- a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/grpc_client.go
+++ b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/grpc_client.go
@@ -2028,6 +2028,10 @@ func (r *gRPCReader) Read(p []byte) (int, error) {
 			n, found := r.currMsg.readAndUpdateCRC(p, 1, func(b []byte) {
 				r.updateCRC(b)
 			})
+			// If we are done reading the current msg, free buffers.
+			if r.currMsg.done {
+				r.currMsg.databufs.Free()
+			}
 
 			// If data for our readID was found, we can update `seen` and return.
 			if found {
@@ -2080,6 +2084,8 @@ func (r *gRPCReader) WriteTo(w io.Writer) (int64, error) {
 				r.updateCRC(b)
 			})
 			r.seen += written
+			// We have processed the message, so free the buffer
+			r.currMsg.databufs.Free()
 			if err != nil {
 				return r.seen - alreadySeen, err
 			}
diff --git a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/internal/version.go b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/internal/version.go
index 54603c25c..c69bbfcc8 100644
--- a/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/internal/version.go
+++ b/ci/resources/stemcell-version-bump/vendor/cloud.google.com/go/storage/internal/version.go
@@ -15,4 +15,4 @@
 package internal
 
 // Version is the current tagged release of the library.
-const Version = "1.56.1"
+const Version = "1.56.2"
diff --git a/ci/resources/stemcell-version-bump/vendor/modules.txt b/ci/resources/stemcell-version-bump/vendor/modules.txt
index 8d33865a6..19b862a83 100644
--- a/ci/resources/stemcell-version-bump/vendor/modules.txt
+++ b/ci/resources/stemcell-version-bump/vendor/modules.txt
@@ -39,7 +39,7 @@ cloud.google.com/go/iam/apiv1/iampb
 cloud.google.com/go/monitoring/apiv3/v2
 cloud.google.com/go/monitoring/apiv3/v2/monitoringpb
 cloud.google.com/go/monitoring/internal
-# cloud.google.com/go/storage v1.56.1
+# cloud.google.com/go/storage v1.56.2
 ## explicit; go 1.23.0
 cloud.google.com/go/storage
 cloud.google.com/go/storage/experimental