diff --git a/insns/README.md b/insns/README.md
index 3e74d9d..6fbb057 100644
--- a/insns/README.md
+++ b/insns/README.md
@@ -58,6 +58,13 @@ _Note: This section is under development and will be updated as more classes are
       - `InsnLw`: LW instruction
       - `InsnLbu`: LBU instruction
       - `InsnLhu`: LHU instruction
+    - `InsnRV32IITypeArith`: RV32I I-Type Instruction (Arithmetic Variation)
+      - `InsnAddi`: ADDI instruction
+      - `InsnSlti`: SLTI instruction
+      - `InsnSltiu`: SLTIU instruction
+      - `InsnXori`: XORI instruction
+      - `InsnOri`: ORI instruction
+      - `InsnAndi`: ANDI instruction
 
 ## Parameters