diff --git a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_01.json b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_01.json
index c9aa137fd7..ac2aa7bb95 100644
--- a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_01.json
+++ b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_01.json
@@ -4,7 +4,8 @@
 	"description": "Hire servants to help quarry stone. Increases stone gathering rates.",
 	"requirements": {
 		"all": [
-			{ "tech": "phase_village" }
+			{ "tech": "phase_village" },
+			{ "civ": "cart" }
 		]
 	},
 	"icon": "mining_stone_01.png",
diff --git a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_02.json b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_02.json
index d2f0fbd043..f6cc1413f8 100644
--- a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_02.json
+++ b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_02.json
@@ -4,7 +4,8 @@
 	"description": "Hire servants to help quarry stone. Increases stone gathering rates.",
 	"requirements": {
 		"all": [
-			{ "tech": "phase_town" }
+			{ "tech": "phase_town" },
+			{ "civ": "cart"}
 		]
 	},
 	"icon": "mining_stone_02.png",
diff --git a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_03.json b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_03.json
index 1fee1662f1..192f3a6f04 100644
--- a/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_03.json
+++ b/binaries/data/mods/public/simulation/data/technologies/civbonuses/cart_stone_03.json
@@ -4,7 +4,8 @@
 	"description": "Hire servants to help quarry stone. Increases stone gathering rates.",
 	"requirements": {
 		"all": [
-			{ "tech": "phase_city" }
+			{ "tech": "phase_city" },
+			{ "civ": "cart"}
 		]
 	},
 	"icon": "mining_stone_03.png",