diff --git a/lib/entry-points.js b/lib/entry-points.js
index dd77444e02..f2be624b77 100644
--- a/lib/entry-points.js
+++ b/lib/entry-points.js
@@ -142238,6 +142238,11 @@ var binaryTag = defineScalarTag("tag:yaml.org,2002:binary", {
 });
 var YAML_DATE_REGEXP = /* @__PURE__ */ new RegExp("^([0-9][0-9][0-9][0-9])-([0-9][0-9])-([0-9][0-9])$");
 var YAML_TIMESTAMP_REGEXP = /* @__PURE__ */ new RegExp("^([0-9][0-9][0-9][0-9])-([0-9][0-9]?)-([0-9][0-9]?)(?:[Tt]|[ \\t]+)([0-9][0-9]?):([0-9][0-9]):([0-9][0-9])(?:\\.([0-9]*))?(?:[ \\t]*(Z|([-+])([0-9][0-9]?)(?::([0-9][0-9]))?))?$");
+function makeUtcDate(year, month, day, hour = 0, minute = 0, second = 0, fraction = 0) {
+  const date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
+  date.setUTCFullYear(year, month, day);
+  return date;
+}
 function resolveYamlTimestamp(source) {
   let match2 = YAML_DATE_REGEXP.exec(source);
   if (match2 === null) match2 = YAML_TIMESTAMP_REGEXP.exec(source);
@@ -142246,7 +142251,7 @@ function resolveYamlTimestamp(source) {
   const month = +match2[2] - 1;
   const day = +match2[3];
   if (!match2[4]) {
-    const date2 = new Date(Date.UTC(year, month, day));
+    const date2 = makeUtcDate(year, month, day);
     if (date2.getUTCFullYear() !== year || date2.getUTCMonth() !== month || date2.getUTCDate() !== day) return NOT_RESOLVED;
     return date2;
   }
@@ -142260,7 +142265,7 @@ function resolveYamlTimestamp(source) {
     while (value.length < 3) value += "0";
     fraction = +value;
   }
-  const date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
+  const date = makeUtcDate(year, month, day, hour, minute, second, fraction);
   if (date.getUTCFullYear() !== year || date.getUTCMonth() !== month || date.getUTCDate() !== day) return NOT_RESOLVED;
   if (match2[9]) {
     const offsetHour = +match2[10];
@@ -142358,7 +142363,11 @@ var mapTag = defineMappingTag("tag:yaml.org,2002:map", {
     return Object.prototype.hasOwnProperty.call(container, String(key));
   },
   keys: (container) => Object.keys(container),
-  get: (container, key) => container[String(key)]
+  get: (container, key) => {
+    const normalizedKey = String(key);
+    if (!Object.prototype.hasOwnProperty.call(container, normalizedKey)) return null;
+    return container[normalizedKey];
+  }
 });
 var setTag = defineMappingTag("tag:yaml.org,2002:set", {
   create: () => /* @__PURE__ */ new Set(),
@@ -142379,9 +142388,9 @@ var setTag = defineMappingTag("tag:yaml.org,2002:set", {
 });
 function createTagDefinitionMap() {
   return {
-    scalar: {},
-    sequence: {},
-    mapping: {}
+    scalar: /* @__PURE__ */ Object.create(null),
+    sequence: /* @__PURE__ */ Object.create(null),
+    mapping: /* @__PURE__ */ Object.create(null)
   };
 }
 function createTagDefinitionListMap() {
@@ -142551,7 +142560,11 @@ var legacyMapTag = defineMappingTag("tag:yaml.org,2002:map", {
     return normalizedKey !== null && Object.prototype.hasOwnProperty.call(container, normalizedKey);
   },
   keys: (container) => Object.keys(container),
-  get: (container, key) => container[String(key)]
+  get: (container, key) => {
+    const normalizedKey = String(key);
+    if (!Object.prototype.hasOwnProperty.call(container, normalizedKey)) return null;
+    return container[normalizedKey];
+  }
 });
 var DEFAULT_SNIPPET_OPTIONS = {
   maxLength: 79,
@@ -142887,10 +142900,10 @@ function getScalarValue(input, scalar) {
       return getPlainValue(input, valueStart, valueEnd);
   }
 }
-var DEFAULT_TAG_HANDLERS = {
+var DEFAULT_TAG_HANDLERS = Object.assign(/* @__PURE__ */ Object.create(null), {
   "!": "!",
   "!!": "tag:yaml.org,2002:"
-};
+});
 function tagPercentEncode(source) {
   return encodeURI(source).replace(/!/g, "%21");
 }
@@ -143143,6 +143156,10 @@ function constructFromEvents(events, options) {
       }
       case 6: {
         const frame = state.frames.pop();
+        if (frame.kind === "mapping" && frame.hasKey) {
+          state.position = frame.keyPosition;
+          throwError$1(state, "incomplete mapping pair in event stream");
+        }
         if (frame.kind === "document") state.documents.push(frame.value);
         else {
           const value = frame.tag.carrierIsResult ? frame.value : finalizeCollection(state, frame.position, frame.tag, frame.value);
@@ -143813,10 +143830,6 @@ function parseNode(state, parentIndent, nodeContext, allowToSeek, allowCompact,
     else if (state.lineIndent === parentIndent) indentStatus = 0;
     else indentStatus = -1;
   }
-  if (state.position === state.lineStart && testDocumentSeparator(state)) {
-    state.depth--;
-    return false;
-  }
   if (indentStatus === 1) while (true) {
     const ch = state.input.charCodeAt(state.position);
     const propertyState = snapshotState(state);
@@ -144365,14 +144378,14 @@ function chooseScalarStyle(state, string2, layout, singleLineOnly, forceQuote, i
       if (char === CHAR_LINE_FEED) {
         hasLineBreak = true;
         if (shouldTrackWidth) {
-          hasFoldableLine = hasFoldableLine || i - previousLineBreak - 1 > lineWidth && string2[previousLineBreak + 1] !== " ";
+          hasFoldableLine = hasFoldableLine || i - previousLineBreak - 1 > lineWidth && !isMoreIndented(string2[previousLineBreak + 1]);
           previousLineBreak = i;
         }
       } else if (!isPrintable(char)) return STYLE_DOUBLE;
       plain = plain && isPlainSafe(char, prevChar, inblock);
       prevChar = char;
     }
-    hasFoldableLine = hasFoldableLine || shouldTrackWidth && i - previousLineBreak - 1 > lineWidth && string2[previousLineBreak + 1] !== " ";
+    hasFoldableLine = hasFoldableLine || shouldTrackWidth && i - previousLineBreak - 1 > lineWidth && !isMoreIndented(string2[previousLineBreak + 1]);
   }
   if (!hasLineBreak && !hasFoldableLine) {
     if (plain && !forceQuote) return STYLE_PLAIN;
@@ -144437,27 +144450,30 @@ function encodeFlowBreaks(string2, indent) {
 function dropEndingNewline(string2) {
   return string2[string2.length - 1] === "\n" ? string2.slice(0, -1) : string2;
 }
+function isMoreIndented(char) {
+  return char === " " || char === "	";
+}
 function foldBlockScalar(string2, width) {
   const lineRe = /(\n+)([^\n]*)/g;
   let nextLF = string2.indexOf("\n");
   if (nextLF === -1) nextLF = string2.length;
   lineRe.lastIndex = nextLF;
   let result = foldLine(string2.slice(0, nextLF), width);
-  let prevMoreIndented = string2[0] === "\n" || string2[0] === " ";
+  let prevMoreIndented = string2[0] === "\n" || isMoreIndented(string2[0]);
   let moreIndented;
   let match2;
   while (match2 = lineRe.exec(string2)) {
     const prefix = match2[1];
     const line = match2[2];
-    moreIndented = line[0] === " ";
+    moreIndented = line !== "" && isMoreIndented(line[0]);
     result += prefix + (!prevMoreIndented && !moreIndented && line !== "" ? "\n" : "") + foldLine(line, width);
     prevMoreIndented = moreIndented;
   }
   return result;
 }
 function foldLine(line, width) {
-  if (line === "" || line[0] === " ") return line;
-  const breakRe = / [^ ]/g;
+  if (line === "" || isMoreIndented(line[0])) return line;
+  const breakRe = / [^ \t]/g;
   let match2;
   let start = 0;
   let end;
@@ -163375,7 +163391,7 @@ tmp/lib/tmp.js:
    *)
 
 js-yaml/dist/js-yaml.mjs:
-  (*! js-yaml 5.2.2 https://github.com/nodeca/js-yaml @license MIT *)
+  (*! js-yaml 5.2.3 https://github.com/nodeca/js-yaml @license MIT *)
 
 long/index.js:
   (**
diff --git a/package-lock.json b/package-lock.json
index d7e08b9248..3ecde2f706 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,7 @@
         "follow-redirects": "^1.16.0",
         "get-folder-size": "^5.0.0",
         "https-proxy-agent": "^7.0.6",
-        "js-yaml": "^5.2.2",
+        "js-yaml": "^5.2.3",
         "jsonschema": "1.5.0",
         "long": "^5.3.2",
         "node-forge": "^1.4.0",
@@ -6981,9 +6981,9 @@
       }
     },
     "node_modules/js-yaml": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.2.2.tgz",
-      "integrity": "sha512-dayzUzKkJ1MkuUtZglSebU43utNXH0OWQByK9rKOOuYIO8M5TV1y+n8ALMdG0rdzBnfNkOmZEqrURepb0ejqBw==",
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.2.3.tgz",
+      "integrity": "sha512-n+mUVyUX5bVv7G/G2zyIHOhdxfuU1dY2NOFzTQUWiMUbFss8b57NFlgCCaggU78wSw5KVS9cllzeLyzyR+n5nw==",
       "funding": [
         {
           "type": "github",
diff --git a/package.json b/package.json
index 0924e874c1..4176f5db35 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "follow-redirects": "^1.16.0",
     "get-folder-size": "^5.0.0",
     "https-proxy-agent": "^7.0.6",
-    "js-yaml": "^5.2.2",
+    "js-yaml": "^5.2.3",
     "jsonschema": "1.5.0",
     "long": "^5.3.2",
     "node-forge": "^1.4.0",