diff --git a/docs/index.md b/docs/index.md
index 00aeb96..79d157d 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -87,6 +87,7 @@ variable, use `fix_code`:
     - item
     - item
   ```
+- Quote jobs.*.containers.volumes entries in GitHub Actions workflow yamls to not confuse GitHubs Yaml parser.
 
 # Configuration
 
diff --git a/src/yamlfix/adapters.py b/src/yamlfix/adapters.py
index ac2d0d4..9955ff7 100644
--- a/src/yamlfix/adapters.py
+++ b/src/yamlfix/adapters.py
@@ -6,9 +6,11 @@
 from io import StringIO
 from typing import Any, Callable, List, Match, Optional, Tuple
 
+from ruyaml.comments import CommentedMap, CommentedSeq
 from ruyaml.main import YAML
 from ruyaml.nodes import MappingNode, Node, ScalarNode, SequenceNode
 from ruyaml.representer import RoundTripRepresenter
+from ruyaml.scalarstring import DoubleQuotedScalarString, SingleQuotedScalarString
 from ruyaml.tokens import CommentToken
 
 from yamlfix.model import YamlfixConfig, YamlNodeStyle
@@ -379,12 +381,27 @@ def _ruamel_yaml_fixer(self, source_code: str) -> str:
         # Return the output to a string
         string_stream = StringIO()
         for source_dict in source_dicts:
+            self._quote_gha_container_volumes(source_dict)
             self.yaml.dump(source_dict, string_stream)
             source_code = string_stream.getvalue()
         string_stream.close()
 
         return source_code.strip()
 
+    def _quote_gha_container_volumes(
+        self, source_dict: CommentedMap | CommentedSeq
+    ) -> None:
+        """Quote jobs.*.container.volumes entries."""
+        if not isinstance(source_dict, CommentedMap):
+            return
+        scalar_type = SingleQuotedScalarString
+        if self.config.quote_representation == '"':
+            scalar_type = DoubleQuotedScalarString
+        for job in source_dict.get("jobs", {}).values():
+            if volumes := job.get("container", {}).get("volumes", []):
+                for i, _ in enumerate(volumes):
+                    volumes[i] = scalar_type(volumes[i])
+
     @staticmethod
     def _fix_top_level_lists(source_code: str) -> str:
         """Deindent the source with a top level list.
diff --git a/tests/unit/test_services.py b/tests/unit/test_services.py
index ca23f1b..cd1cfd6 100644
--- a/tests/unit/test_services.py
+++ b/tests/unit/test_services.py
@@ -1034,3 +1034,78 @@ def test_fix_code_fix_whitelines(
         result = fix_code(source_code=source, config=config)
 
         assert result == desired_source
+
+    @pytest.mark.parametrize(
+        ("source", "config", "desired_source"),
+        [
+            (
+                dedent(
+                    """\
+                    ---
+                    jobs:
+                      test:
+                        container:
+                          volumes:
+                            - /data:/data
+                            - a:b  # commented
+                            - 'c:d'
+                            - >-
+                              multi:
+                              line
+                    """
+                ),
+                YamlfixConfig(sequence_style=YamlNodeStyle.FLOW_STYLE),
+                dedent(
+                    """\
+                    ---
+                    jobs:
+                      test:
+                        container:
+                          volumes:
+                            - '/data:/data'
+                            - 'a:b'  # commented
+                            - 'c:d'
+                            - 'multi: line'
+                    """
+                ),
+            ),
+            (
+                dedent(
+                    """\
+                    ---
+                    jobs:
+                      test2:
+                        container:
+                          volumes:
+                            - /data:/data
+                            - a:b
+                            - 'c:d'
+                            - >-
+                              multi:
+                              line
+                    """
+                ),
+                YamlfixConfig(sequence_style=YamlNodeStyle.FLOW_STYLE),
+                dedent(
+                    """\
+                    ---
+                    jobs:
+                      test2:
+                        container:
+                          volumes: ['/data:/data', 'a:b', 'c:d', 'multi: line']
+                    """
+                ),
+            ),
+        ],
+    )
+    def test_strings_with_colons_are_quoted(
+        self, source: str, config: Optional[YamlfixConfig], desired_source: str
+    ) -> None:
+        """
+        Given: A GitHub Action workflow yaml containing jobs.*.containers.volumes
+        When: fix_code is run
+        Then: The volumes entries are quoted
+        """
+        result = fix_code(source, config=config)
+
+        assert result == desired_source