diff --git a/src/Symfony/Component/Yaml/Parser.php b/src/Symfony/Component/Yaml/Parser.php
index e51391f35deaa..edef30b3745e9 100644
--- a/src/Symfony/Component/Yaml/Parser.php
+++ b/src/Symfony/Component/Yaml/Parser.php
@@ -529,8 +529,8 @@ private function getNextEmbedBlock(int $indentation = null, bool $inSequence = f
             do {
                 $EOF = false;
 
-                // empty and comment-like lines do not influence the indentation depth
-                if ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()) {
+                // empty, quotation mark only, and comment-like lines do not influence the indentation depth
+                if ($this->isCurrentLineEmpty() || $this->isCurrentLineComment() || $this->isCurrentLineQuotationOnly()) {
                     $EOF = !$this->moveToNextLine();
 
                     if (!$EOF) {
@@ -557,7 +557,7 @@ private function getNextEmbedBlock(int $indentation = null, bool $inSequence = f
         $data = [];
         if ($this->getCurrentLineIndentation() >= $newIndent) {
             $data[] = substr($this->currentLine, $newIndent);
-        } elseif ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()) {
+        } elseif ($this->isCurrentLineEmpty() || $this->isCurrentLineComment() || $this->isCurrentLineQuotationOnly()) {
             $data[] = $this->currentLine;
         } else {
             $this->moveToPreviousLine();
@@ -590,7 +590,7 @@ private function getNextEmbedBlock(int $indentation = null, bool $inSequence = f
 
             if ($indent >= $newIndent) {
                 $data[] = substr($this->currentLine, $newIndent);
-            } elseif ($this->isCurrentLineComment()) {
+            } elseif ($this->isCurrentLineComment() || $this->isCurrentLineQuotationOnly()) {
                 $data[] = $this->currentLine;
             } elseif (0 == $indent) {
                 $this->moveToPreviousLine();
@@ -916,6 +916,18 @@ private function isCurrentLineComment(): bool
         return '' !== $ltrimmedLine && '#' === $ltrimmedLine[0];
     }
 
+    /**
+     * Returns true if the current line contains quotation mark only.
+     *
+     * @return bool Returns true if the current line contains quotation mark only, false otherwise
+     */
+    private function isCurrentLineQuotationOnly(): bool
+    {
+        $trimmedLine = trim($this->currentLine, ' ');
+
+        return 1 == \strlen($trimmedLine) && '' !== $trimmedLine && ("'" === $trimmedLine[0] || '"' === $trimmedLine[0]);
+    }
+
     private function isCurrentLineLastLineInDocument(): bool
     {
         return ($this->offset + $this->currentLineNb) >= ($this->totalNumberOfLines - 1);
diff --git a/src/Symfony/Component/Yaml/Tests/ParserTest.php b/src/Symfony/Component/Yaml/Tests/ParserTest.php
index 366902a8647e4..3c0596b16531c 100644
--- a/src/Symfony/Component/Yaml/Tests/ParserTest.php
+++ b/src/Symfony/Component/Yaml/Tests/ParserTest.php
@@ -2150,6 +2150,38 @@ public function testParseValueWithNegativeModifiers()
             $this->parser->parse($yaml)
         );
     }
+
+    public function testParseValueWithUnindentedClosingQuotation()
+    {
+        $expected = ['foo' => ['bar' => 'baz ']];
+
+        // unindented closing single quote
+        $yaml = <<<YAML
+---
+foo:
+    bar: 'baz
+'
+YAML;
+        $this->assertSame($expected, $this->parser->parse($yaml));
+
+        // unindented closing double quote
+        $yaml = <<<YAML
+---
+foo:
+    bar: "baz
+"
+YAML;
+        $this->assertSame($expected, $this->parser->parse($yaml));
+
+        // correctly-indented closing double quote
+        $yaml = <<<YAML
+---
+foo:
+    bar: "baz
+    "
+YAML;
+        $this->assertSame($expected, $this->parser->parse($yaml));
+    }
 }
 
 class B