diff --git a/codex.nimble b/codex.nimble
index c170f70d..dbef1421 100644
--- a/codex.nimble
+++ b/codex.nimble
@@ -26,7 +26,7 @@ requires "nim >= 1.2.0",
          "stew",
          "upraises >= 0.1.0 & < 0.2.0",
          "lrucache",
-         "leopard",
+         "leopard >= 0.1.0 & < 0.2.0",
          "blscurve",
          "libp2pdht",
          "eth"
diff --git a/vendor/nim-leopard b/vendor/nim-leopard
index 2a6a6392..ae043fd2 160000
--- a/vendor/nim-leopard
+++ b/vendor/nim-leopard
@@ -1 +1 @@
-Subproject commit 2a6a63923e9b95676b5ae7ff2c346be0e63e753c
+Subproject commit ae043fd262d2cc2f46db4a9f2f8054e73167a970