diff --git a/biomes/tundra-spruce-denmyre.json b/biomes/tundra-spruce-denmyre.json
index d43b85fe..80b00fdb 100644
--- a/biomes/tundra-spruce-denmyre.json
+++ b/biomes/tundra-spruce-denmyre.json
@@ -226,11 +226,11 @@
                 },
                 {
                 "find": [{"block": "spruce_leaves"}],
-                "replace": {"palette": [{"block": "spruce_leaves"}]}
+                "replace": {"palette": [{"block": "spruce_leaves", "data": {"persistent": true}}]}
                 },
                 {
                 "find": [{"block": "spruce_wood"}],
-                "replace": {"palette": [{"block": "spruce_leaves"}]}
+                "replace": {"palette": [{"block": "spruce_leaves", "data": {"persistent": true}}]}
                 }
             ],
             "chance": 0.3,
diff --git a/objects/savanna-rock/SavanaRock1.iob b/objects/savanna-rock/SavanaRock1.iob
index 02b6e444..8f3a7baf 100644
Binary files a/objects/savanna-rock/SavanaRock1.iob and b/objects/savanna-rock/SavanaRock1.iob differ
diff --git a/objects/savanna-rock/SavanaRock2.iob b/objects/savanna-rock/SavanaRock2.iob
index 190e2951..d6896c1e 100644
Binary files a/objects/savanna-rock/SavanaRock2.iob and b/objects/savanna-rock/SavanaRock2.iob differ
diff --git a/objects/savanna-rock/SavanaRock3.iob b/objects/savanna-rock/SavanaRock3.iob
index 85c6ba90..b31791bf 100644
Binary files a/objects/savanna-rock/SavanaRock3.iob and b/objects/savanna-rock/SavanaRock3.iob differ
diff --git a/objects/savanna-rock/SavanaRock4.iob b/objects/savanna-rock/SavanaRock4.iob
index 5041ecfa..cc59b044 100644
Binary files a/objects/savanna-rock/SavanaRock4.iob and b/objects/savanna-rock/SavanaRock4.iob differ
diff --git a/objects/savanna-rock/SavanaRock5.iob b/objects/savanna-rock/SavanaRock5.iob
index 897f8d34..62724e73 100644
Binary files a/objects/savanna-rock/SavanaRock5.iob and b/objects/savanna-rock/SavanaRock5.iob differ