diff --git a/pow/Cargo.toml b/pow/Cargo.toml
index 459072cc..5ba378da 100644
--- a/pow/Cargo.toml
+++ b/pow/Cargo.toml
@@ -18,7 +18,7 @@ grin_util = { path = "../util" }
 
 [dependencies.cuckoo_miner]
 git = "https://github.com/mimblewimble/cuckoo-miner"
-tag = "grin_integration_19"
+tag = "grin_integration_20"
 #path = "../../cuckoo-miner"
 #uncomment this feature to turn off plugin builds
 #features=["no-plugin-build"]