diff --git a/substrate/primitives/core/src/crypto.rs b/substrate/primitives/core/src/crypto.rs
index 5be18422d0..9e3177f249 100644
--- a/substrate/primitives/core/src/crypto.rs
+++ b/substrate/primitives/core/src/crypto.rs
@@ -584,6 +584,10 @@ ss58_address_format!(
 		(77, "manta", "Manta Network, standard account (*25519).")
 	CalamariAccount =>
 		(78, "calamari", "Manta Canary Network, standard account (*25519).")
+	PolkaSmith =>
+		(98, "polkasmith", "PolkaSmith Canary Network, standard account (*25519).")
+	PolkaFoundry =>
+		(99, "polkafoundry", "PolkaFoundry Network, standard account (*25519).")
 	SocialAccount =>
 		(252, "social-network", "Social Network, standard account (*25519).")
 	Moonbeam =>
diff --git a/substrate/ss58-registry.json b/substrate/ss58-registry.json
index 9fec4b7be9..133cb6506f 100644
--- a/substrate/ss58-registry.json
+++ b/substrate/ss58-registry.json
@@ -505,6 +505,24 @@
 			"standardAccount": "*25519",
 			"website": "https://manta.network"
 		},
+		{
+			"prefix": 98,
+			"network": "polkasmith",
+			"displayName": "PolkaSmith Canary Network",
+			"symbols": ["PKS"],
+			"decimals": [18],
+			"standardAccount": "*25519",
+			"website": "https://polkafoundry.com"
+		},
+		{
+			"prefix": 99,
+			"network": "polkafoundry",
+			"displayName": "PolkaFoundry Network",
+			"symbols": ["PKF"],
+			"decimals": [18],
+			"standardAccount": "*25519",
+			"website": "https://polkafoundry.com"
+  	        },
 		{
 			"prefix": 252,
 			"network": "social-network",