diff --git a/changelog.txt b/changelog.txt
index e9165e3..31e7322 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,9 @@
 ---------------------------------------------------------------------------------------------------
+Version: 2.0.4
+Date: 2024-4-17
+  Changes:
+    - Made sure very early techs are not effected by tech cost multiplier in line with Py Post Processing changes.
+---------------------------------------------------------------------------------------------------
 Version: 2.0.3
 Date: 2023-9-15
   Changes:
diff --git a/data-updates.lua b/data-updates.lua
index 178168d..b71e0c1 100644
--- a/data-updates.lua
+++ b/data-updates.lua
@@ -158,6 +158,15 @@ RECIPE {
 }
 ]]--
 
+-- make sure very early techs are not effected by the tech cost multiplier
+local function prevent_cost_multiplier(name)
+    local tech = data.raw.technology[name]
+    if not tech then return end
+    tech.ignore_tech_cost_multiplier = true
+end
+
+prevent_cost_multiplier('seaweed-mk01')
+
 if register_cache_file ~= nil then
     register_cache_file({'pycoalprocessing', 'pyfusionenergy', 'pyindustry', 'pyrawores', 'pypetroleumhandling', 'pyalienlife', 'pyhightech', 'pyalternativeenergy', 'PyBlock'}, "__PyBlock__/cached-configs/PyBlock+pyalienlife+pyalternativeenergy+pycoalprocessing+pyfusionenergy+pyhightech+pyindustry+pypetroleumhandling+pyrawores")
 end