diff --git a/nodeJs-and-express/server-side-security/security-overview/Exercise Files/CH3/03_03/end/package-lock.json b/nodeJs-and-express/server-side-security/security-overview/Exercise Files/CH3/03_03/end/package-lock.json
old mode 100755
new mode 100644
index 1cdba7ef..e870612b
--- a/nodeJs-and-express/server-side-security/security-overview/Exercise Files/CH3/03_03/end/package-lock.json	
+++ b/nodeJs-and-express/server-side-security/security-overview/Exercise Files/CH3/03_03/end/package-lock.json	
@@ -211,13 +211,15 @@
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           "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
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           "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
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@@ -2086,7 +2088,8 @@
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@@ -2104,11 +2107,13 @@
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@@ -2121,15 +2126,18 @@
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@@ -2232,7 +2240,8 @@
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@@ -2242,6 +2251,7 @@
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@@ -2254,17 +2264,20 @@
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@@ -2281,6 +2294,7 @@
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@@ -2353,7 +2367,8 @@
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@@ -2363,6 +2378,7 @@
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@@ -2438,7 +2454,8 @@
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@@ -2468,6 +2485,7 @@
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@@ -2485,6 +2503,7 @@
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@@ -2523,11 +2542,13 @@
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@@ -2580,13 +2601,15 @@
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@@ -3096,9 +3119,9 @@
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@@ -3563,7 +3586,8 @@
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           "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
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