diff --git a/project 4/package-lock.json b/project 4/package-lock.json
index a7006ae..e5e0a3b 100644
--- a/project 4/package-lock.json	
+++ b/project 4/package-lock.json	
@@ -5,27 +5,39 @@
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       "dev": true,
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-        "samsam": "1.3.0"
+        "@sinonjs/commons": "^1",
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       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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+      "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
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@@ -81,11 +99,85 @@
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+        "create-hash": "^1.2.0",
+        "create-hmac": "^1.1.7",
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@@ -95,6 +187,11 @@
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@@ -137,12 +234,55 @@
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+      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
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       "dev": true
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+      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
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@@ -999,11 +1320,27 @@
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@@ -1061,6 +1398,15 @@
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+    "secp256k1": {
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@@ -1133,6 +1508,15 @@
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+      "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
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@@ -1154,20 +1538,29 @@
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+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-7.5.0.tgz",
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-        "@sinonjs/formatio": "^2.0.0",
-        "@sinonjs/samsam": "^2.0.0",
+        "@sinonjs/commons": "^1.4.0",
+        "@sinonjs/formatio": "^3.2.1",
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-        "nise": "^1.4.2",
-        "supports-color": "^5.4.0",
-        "type-detect": "^4.0.8"
+        "lolex": "^4.2.0",
+        "nise": "^1.5.2",
+        "supports-color": "^5.5.0"
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+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
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@@ -1251,11 +1644,24 @@
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-      "integrity": "sha1-45mpgiV6J22uQou5KEXLcb3CbRk=",
-      "dev": true
+    "tiny-secp256k1": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/tiny-secp256k1/-/tiny-secp256k1-1.1.6.tgz",
+      "integrity": "sha512-FmqJZGduTyvsr2cF3375fqGHUovSwDi/QytexX1Se4BPuPZpTE5Ftp5fg+EFSuEf3lhZqgCRjEG3ydUQ/aNiwA==",
+      "requires": {
+        "bindings": "^1.3.0",
+        "bn.js": "^4.11.8",
+        "create-hmac": "^1.1.7",
+        "elliptic": "^6.4.0",
+        "nan": "^2.13.2"
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+          "version": "2.15.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.15.0.tgz",
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+        }
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@@ -1285,6 +1691,11 @@
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       }
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+      "resolved": "https://registry.npmjs.org/typeforce/-/typeforce-1.18.0.tgz",
+      "integrity": "sha512-7uc1O8h1M1g0rArakJdf0uLRSSgFcYexrVoKo+bzJd32gd4gDy2L/Z+8/FjPnU9ydY3pEnVPtr9FyscYY60K1g=="
+    },
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       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -1300,6 +1711,14 @@
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       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
+    "varuint-bitcoin": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/varuint-bitcoin/-/varuint-bitcoin-1.1.2.tgz",
+      "integrity": "sha512-4EVb+w4rx+YfVM32HQX42AbbT7/1f5zwAYhIujKXKk8NQK+JfRVl3pqT3hjNn/L+RstigmGGKVwHA/P0wgITZw==",
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@@ -1318,6 +1737,14 @@
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+    "wif": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/wif/-/wif-2.0.6.tgz",
+      "integrity": "sha1-CNP1IFbGZnkplyb63g1DKudLRwQ=",
+      "requires": {
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/project 4/package.json b/project 4/package.json
index 36416a1..9be80d3 100644
--- a/project 4/package.json	
+++ b/project 4/package.json	
@@ -16,7 +16,7 @@
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     "express": "^4.16.3",
     "level": "^4.0.0",
-    "moment": "^2.22.2"
+    "moment": "^2.29.2"
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