diff --git a/Resources/Prototypes/Research/arsenal.yml b/Resources/Prototypes/Research/arsenal.yml
index 5a55a34cdf..1cfa1fec80 100644
--- a/Resources/Prototypes/Research/arsenal.yml
+++ b/Resources/Prototypes/Research/arsenal.yml
@@ -97,8 +97,6 @@
   - HoloprojectorSecurity
   - WeaponDisablerSMG
 
-# Tier 2
-
 - type: technology
   id: ExplosiveTechnology
   name: research-technology-explosive-technology
@@ -106,7 +104,7 @@
     sprite: Objects/Devices/payload.rsi
     state: payload-explosive-armed
   discipline: Arsenal
-  tier: 2
+  tier: 1
   cost: 10000
   recipeUnlocks:
   - SignallerAdvanced
@@ -117,6 +115,8 @@
   - ExplosivePayload
   - ChemicalPayload
 
+# Tier 2
+
 - type: technology
   id: ConcentratedLaserWeaponry
   name: research-technology-concentrated-laser-weaponry