diff --git a/test/windows/InstallerTests.cpp b/test/windows/InstallerTests.cpp
index ce5b5dc..9b265f6 100644
--- a/test/windows/InstallerTests.cpp
+++ b/test/windows/InstallerTests.cpp
@@ -249,7 +249,9 @@ class InstallerTests
 
         try
         {
-            wsl::shared::retry::RetryWithTimeout<void>(pred, std::chrono::seconds(1), std::chrono::minutes(2));
+            // It is possible for the 'DeprovisionMsix' stage of the MSI installation to take a long time.
+            // On vb_release, up to 7 minutes have been observed. Wait for up to 20 minutes to be safe.
+            wsl::shared::retry::RetryWithTimeout<void>(pred, std::chrono::seconds(1), std::chrono::minutes(20));
         }
         catch (...)
         {