diff --git a/angelsbioprocessing/changelog.txt b/angelsbioprocessing/changelog.txt
index b7f5cdda4..0e29a3659 100644
--- a/angelsbioprocessing/changelog.txt
+++ b/angelsbioprocessing/changelog.txt
@@ -11,6 +11,7 @@ Date: ??
     - Some minor localisation changes to unify angels localisation across mods (372)
     - Fixed the plant growing 1 & 2 did not show their result amounts correctly
     - Fixed plant processing recipes 1 & 2 did not show there recipe name correctly
+    - Fixed missing prerequisite on the Wood processing 2 technology
 ---------------------------------------------------------------------------------------------------
 Version: 0.7.14
 Date: 20.08.2020
diff --git a/angelsbioprocessing/prototypes/technology/bio-processing-wood-paper.lua b/angelsbioprocessing/prototypes/technology/bio-processing-wood-paper.lua
index 3b4af24a2..3e9d8fa64 100644
--- a/angelsbioprocessing/prototypes/technology/bio-processing-wood-paper.lua
+++ b/angelsbioprocessing/prototypes/technology/bio-processing-wood-paper.lua
@@ -34,6 +34,7 @@ data:extend(
     prerequisites =
     {
       "bio-wood-processing",
+      "angels-coal-processing"
     },
     effects =
     {
diff --git a/angelsrefining/changelog.txt b/angelsrefining/changelog.txt
index e3aec9652..ed80376cf 100644
--- a/angelsrefining/changelog.txt
+++ b/angelsrefining/changelog.txt
@@ -15,6 +15,8 @@ Date: ??
     - Fixed not being able to manually crush and processing trees with bob classes (366)
     - Fixed some bobclasses are not startable in some configurations (394)
     - Fixed bobs gem procesing were unlocked before gem crystallization (415)
+    - Fixed Advanced ore refining technology was missing a prerequisite on Slag processing 1
+    - Fixed Advanced ore refining 2 technology was missing a prerequisite on Geode processing 2
 ---------------------------------------------------------------------------------------------------
 Version: 0.11.16
 Date: 20.08.2020
diff --git a/angelsrefining/prototypes/technology/refining-technology.lua b/angelsrefining/prototypes/technology/refining-technology.lua
index 50a48ed86..9dca7a6b2 100644
--- a/angelsrefining/prototypes/technology/refining-technology.lua
+++ b/angelsrefining/prototypes/technology/refining-technology.lua
@@ -76,7 +76,8 @@ data:extend(
       icon = "__angelsrefining__/graphics/technology/ore-sorting.png",
       icon_size = 128,
       prerequisites = {
-        "ore-crushing"
+        --"ore-crushing",
+        "slag-processing-1"
       },
       effects = {
         {
@@ -308,7 +309,8 @@ data:extend(
       icon_size = 128,
       prerequisites = {
         "ore-floatation",
-        "advanced-ore-refining-1"
+        "advanced-ore-refining-1",
+        "geode-processing-2"
       },
       effects = {
         {
@@ -365,7 +367,7 @@ data:extend(
       icon_size = 256,
       icon_mipmaps = 2,
       prerequisites = {
-        "ore-crushing",
+        --"ore-crushing",
         "geode-processing-1",
         "slag-processing-1",
         "water-washing-2"