diff --git a/config.js b/config.js
index 96fd5b1..13ca26f 100644
--- a/config.js
+++ b/config.js
@@ -46,7 +46,7 @@ switch (platform) {
     break
 }
 
-const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}`
+const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}-${arch}`
 const bazelrc = core.getMultilineInput('bazelrc')
 
 const diskCacheConfig = core.getInput('disk-cache')
diff --git a/dist/main/index.js b/dist/main/index.js
index 86f8af9..fef2ec3 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -52,7 +52,7 @@ switch (platform) {
     break
 }
 
-const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}`
+const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}-${arch}`
 const bazelrc = core.getMultilineInput('bazelrc')
 
 const diskCacheConfig = core.getInput('disk-cache')
diff --git a/dist/post/index.js b/dist/post/index.js
index 4506f86..90f070f 100644
--- a/dist/post/index.js
+++ b/dist/post/index.js
@@ -52,7 +52,7 @@ switch (platform) {
     break
 }
 
-const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}`
+const baseCacheKey = `setup-bazel-${cacheVersion}-${platform}-${arch}`
 const bazelrc = core.getMultilineInput('bazelrc')
 
 const diskCacheConfig = core.getInput('disk-cache')