diff --git a/sig/coprocessor/membership.json b/sig/coprocessor/membership.json
new file mode 100644
index 00000000..dd03f779
--- /dev/null
+++ b/sig/coprocessor/membership.json
@@ -0,0 +1,73 @@
+{
+  "name": "coprocessor",
+  "techLeaders": [
+    {
+      "githubName": "breeswish"
+    }
+  ],
+  "coLeaders": [
+    {
+      "githubName": "SunRunAway"
+    },
+    {
+      "githubName": "lzmhhh123"
+    }
+  ],
+  "committers": [
+    {
+      "githubName": "niedhui"
+    },
+    {
+      "githubName": "TennyZhuang"
+    },
+    {
+      "githubName": "skyzh"
+    },
+    {
+      "githubName": "lonng"
+    },
+    {
+      "githubName": "sticnarf"
+    },
+    {
+      "githubName": "zhongzc"
+    },
+    {
+      "githubName": "iosmanthus"
+    },
+    {
+      "githubName": "andylokandy"
+    },
+    {
+      "githubName": "MyonKeminta"
+    },
+    {
+      "githubName": "AndreMouche"
+    }
+  ],
+  "reviewers": [
+    {
+      "githubName": "Fullstop000"
+    }
+  ],
+  "activeContributors": [
+    {
+      "githubName": "hawkingrei"
+    },
+    {
+      "githubName": "koushiro"
+    },
+    {
+      "githubName": "cireu"
+    },
+    {
+      "githubName": "renkai"
+    },
+    {
+      "githubName": "codeworm96"
+    },
+    {
+      "githubName": "Rustin-Liu"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/sig/coprocessor/membership.md b/sig/coprocessor/membership.md
deleted file mode 100644
index 8bf3221d..00000000
--- a/sig/coprocessor/membership.md
+++ /dev/null
@@ -1,37 +0,0 @@
-# Coprocessor SIG Members
-
-## Tech Leader
-
-- [@breeswish](https://github.com/breeswish) (PingCAP)
-- Probation: [@SunRunAway](https://github.com/SunRunAway) (PingCAP)
-- Probation: [@lzmhhh123](https://github.com/lzmhhh123) (PingCAP)
-
-## Committers
-
-- [@niedhui](https://github.com/niedhui)
-- [@TennyZhuang](https://github.com/TennyZhuang)
-- [@skyzh](https://github.com/skyzh)
-
-- [@lonng](https://github.com/lonng) (PingCAP, previous Tech Leader)
-- [@sticnarf](https://github.com/sticnarf) (PingCAP)
-- [@zhongzc](https://github.com/zhongzc) (PingCAP)
-- [@iosmanthus](https://github.com/iosmanthus) (PingCAP)
-- [@andylokandy](https://github.com/andylokandy) (PingCAP)
-- [@AndreMouche](https://github.com/AndreMouche) (PingCAP)
-
-## Reviewers
-
-- [@Fullstop000](https://github.com/Fullstop000)
-
-## Active Contributors
-
-- [@hawkingrei](http://github.com/hawkingrei)
-- [@koushiro](http://github.com/koushiro)
-- [@cireu](https://github.com/cireu)
-- [@renkai](https://github.com/renkai)
-- [@codeworm96](https://github.com/codeworm96)
-- [@Rustin-Liu](https://github.com/Rustin-Liu)
-
-## Former Members
-
-None