diff --git a/changelog.txt b/changelog.txt
index e8881dd..e0002e2 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4,6 +4,7 @@ Date: 2025-01-04
   Fixes:
     - Lock tin sulfides properly behind tech
   Changes:
+    - Update weights for rockets
     - Hot metals: use default cooling time
 ---------------------------------------------------------------------------------------------------
 Version: 2.0.1
diff --git a/tin-recipe.lua b/tin-recipe.lua
index ceecb7e..027943a 100644
--- a/tin-recipe.lua
+++ b/tin-recipe.lua
@@ -53,7 +53,8 @@ data:extend({
     icon_size = 128,
     subgroup = "raw-material",
     order = "b[tin-plate]",
-    stack_size = util.get_stack_size(100)
+    stack_size = util.get_stack_size(100),
+    weight = 1*kg,
   },
 })
 
@@ -72,6 +73,7 @@ data:extend({
     subgroup = "intermediate-product",
     order = "b[solder]",
     stack_size = util.get_stack_size(100),
+    weight = 1*kg,
   },
   {
     type = "recipe",
@@ -196,6 +198,7 @@ data:extend({
     subgroup = util.cablesg,
     order = "b[tinned-cable]",
     stack_size = util.get_stack_size(100),
+    weight = 1*kg,
   },
   {
     type = "recipe",
@@ -240,6 +243,7 @@ data:extend({
     subgroup = "intermediate-product",
     order = "b[bronze-plate]",
     stack_size = util.get_stack_size(100),
+    weight = 1*kg,
   },
   {
     type = "recipe",
@@ -432,6 +436,7 @@ data:extend({
     drop_sound = space_age_item_sounds.agriculture_inventory_move,
     stack_size = 100,
     default_import_location = "gleba",
+    weight = 1*kg,
   },
   {
     type = "recipe",