diff --git a/tools/isobuild/bundler.js b/tools/isobuild/bundler.js
index 218de26b6e..3fce252f16 100644
--- a/tools/isobuild/bundler.js
+++ b/tools/isobuild/bundler.js
@@ -563,7 +563,7 @@ class File {
 
   static _salt() {
     // Increment this number to force rehashing.
-    return 1;
+    return 2;
   }
 
   hash() {
diff --git a/tools/isobuild/compiler-plugin.js b/tools/isobuild/compiler-plugin.js
index 5cd2ea45f9..b9d9a453c7 100644
--- a/tools/isobuild/compiler-plugin.js
+++ b/tools/isobuild/compiler-plugin.js
@@ -62,7 +62,7 @@ import { isTestFilePath } from './test-files.js';
 // Cache the (slightly post-processed) results of linker.fullLink.
 const CACHE_SIZE = process.env.METEOR_LINKER_CACHE_SIZE || 1024*1024*100;
 const CACHE_DEBUG = !! process.env.METEOR_TEST_PRINT_LINKER_CACHE_DEBUG;
-const LINKER_CACHE_SALT = 12; // Increment this number to force relinking.
+const LINKER_CACHE_SALT = 13; // Increment this number to force relinking.
 const LINKER_CACHE = new LRU({
   max: CACHE_SIZE,
   // Cache is measured in bytes. We don't care about servePath.
diff --git a/tools/isobuild/compiler.js b/tools/isobuild/compiler.js
index 3006b93896..bca69ccf4b 100644
--- a/tools/isobuild/compiler.js
+++ b/tools/isobuild/compiler.js
@@ -34,7 +34,7 @@ var compiler = exports;
 // dependencies. (At least for now, packages only used in target creation (eg
 // minifiers) don't require you to update BUILT_BY, though you will need to quit
 // and rerun "meteor run".)
-compiler.BUILT_BY = 'meteor/25';
+compiler.BUILT_BY = 'meteor/26';
 
 // This is a list of all possible architectures that a build can target. (Client
 // is expanded into 'web.browser' and 'web.cordova')