diff --git a/Lab 4 (SupplyChainLog)/Solidity/package-lock.json b/Lab 4 (SupplyChainLog)/Solidity/package-lock.json
index c4ee8b8..770a9d9 100644
--- a/Lab 4 (SupplyChainLog)/Solidity/package-lock.json	
+++ b/Lab 4 (SupplyChainLog)/Solidity/package-lock.json	
@@ -1665,9 +1665,12 @@
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diff --git a/Lab 4 (SupplyChainLog)/Solidity/package.json b/Lab 4 (SupplyChainLog)/Solidity/package.json
index 070a1f0..9d54d77 100644
--- a/Lab 4 (SupplyChainLog)/Solidity/package.json	
+++ b/Lab 4 (SupplyChainLog)/Solidity/package.json	
@@ -44,7 +44,7 @@
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   },
   "dependencies": {
-    "ejs": "^2.5.7",
+    "ejs": "^3.1.7",
     "solc": "^0.5.2",
     "solium": "^1.1.8",
     "truffle": "^5.0.0",