diff --git a/bucket/zstd.json b/bucket/zstd.json
index 24a90690b2..56b5fe4ca1 100644
--- a/bucket/zstd.json
+++ b/bucket/zstd.json
@@ -1,13 +1,13 @@
 {
-    "version": "1.5.6",
+    "version": "1.5.5",
     "description": "High compression ratios compression algorithm",
     "homepage": "https://facebook.github.io/zstd/",
     "license": "BSD-3-Clause",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/facebook/zstd/releases/download/v1.5.6/zstd-v1.5.6-win64.zip",
-            "hash": "7b4eff6719990e38aca93a4844c2e86a1935090625c4611f7e89675e999c56cc",
-            "extract_dir": "zstd-v1.5.6-win64"
+            "url": "https://github.com/facebook/zstd/releases/download/v1.5.5/zstd-v1.5.5-win64.zip",
+            "hash": "1ab47163dd8ea8c3ef35311ba77808870347e2f0e3e50acd4e99a21c0d87da2c",
+            "extract_dir": "zstd-v1.5.5-win64"
         }
     },
     "bin": "zstd.exe",