diff --git a/.github/workflows/_cocoapods.yml b/.github/workflows/_cocoapods.yml
index 9e8778e2382..4cd280bdd02 100644
--- a/.github/workflows/_cocoapods.yml
+++ b/.github/workflows/_cocoapods.yml
@@ -124,11 +124,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-15, macos-26]
-        xcode: [Xcode_16.4, Xcode_26.1]
+        xcode: [Xcode_16.4, Xcode_26.2]
         platform: [iOS, tvOS, macOS, watchOS]
         exclude:
           - os: macos-15
-            xcode: Xcode_26.1
+            xcode: Xcode_26.2
           - os: macos-26
             xcode: Xcode_16.4
         include:
diff --git a/.github/workflows/_spm.yml b/.github/workflows/_spm.yml
index 0b3f510cca5..b8a75e1285f 100644
--- a/.github/workflows/_spm.yml
+++ b/.github/workflows/_spm.yml
@@ -98,11 +98,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-15, macos-26]
-        xcode: [Xcode_16.4, Xcode_26.1]
+        xcode: [Xcode_16.4, Xcode_26.2]
         platform: [iOS, tvOS, macOS, watchOS, catalyst, visionOS]
         exclude:
           - os: macos-15
-            xcode: Xcode_26.1
+            xcode: Xcode_26.2
           - os: macos-26
             xcode: Xcode_16.4
         include:
diff --git a/FirebaseCore/Internal/Tests/Unit/HeartbeatStorageTests.swift b/FirebaseCore/Internal/Tests/Unit/HeartbeatStorageTests.swift
index d8cec20a203..31b84194908 100644
--- a/FirebaseCore/Internal/Tests/Unit/HeartbeatStorageTests.swift
+++ b/FirebaseCore/Internal/Tests/Unit/HeartbeatStorageTests.swift
@@ -64,7 +64,11 @@ class HeartbeatStorageTests: XCTestCase {
   func testCachedInstancesCannotBeRetainedWeakly() {
     // Given
     var strongHeartbeatStorage: HeartbeatStorage? = .getInstance(id: "sparky")
-    weak var weakHeartbeatStorage: HeartbeatStorage? = .getInstance(id: "sparky")
+    #if swift(>=6.2)
+      weak let weakHeartbeatStorage: HeartbeatStorage? = .getInstance(id: "sparky")
+    #else
+      weak var weakHeartbeatStorage: HeartbeatStorage? = .getInstance(id: "sparky")
+    #endif
     XCTAssert(
       strongHeartbeatStorage === weakHeartbeatStorage,
       "Instances should reference the same object."
diff --git a/FirebaseStorage/CHANGELOG.md b/FirebaseStorage/CHANGELOG.md
index fca3085cc3b..06a94757050 100644
--- a/FirebaseStorage/CHANGELOG.md
+++ b/FirebaseStorage/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Unreleased
+- [fixed] Fix "weak never mutated" build warning introduced in Xcode 26.2.
+
 # 12.0.0
 - [removed] **Breaking change**: Removed the following unused API,
   `StorageMetadata.storageReference`.
diff --git a/FirebaseStorage/Sources/StorageReference.swift b/FirebaseStorage/Sources/StorageReference.swift
index 26d4b27ee5a..10524cfdaa7 100644
--- a/FirebaseStorage/Sources/StorageReference.swift
+++ b/FirebaseStorage/Sources/StorageReference.swift
@@ -316,7 +316,11 @@ import Foundation
     var prefixes = [StorageReference]()
     var items = [StorageReference]()
 
-    weak var weakSelf = self
+    #if swift(>=6.2)
+      weak let weakSelf = self
+    #else
+      weak var weakSelf = self
+    #endif
 
     var paginatedCompletion: ((_: StorageListResult?, _: Error?) -> Void)?
     paginatedCompletion = { (_ listResult: StorageListResult?, _ error: Error?) in