diff --git a/messages/results-writer.md b/messages/results-writer.md
index b29c1060c..03076e48e 100644
--- a/messages/results-writer.md
+++ b/messages/results-writer.md
@@ -1,3 +1,3 @@
 # error.unrecognized-file-format
 
-The output file %s has an unsupported extension. Valid extensions include: .csv; .html/.htm; .json; .junit/.junit.xml; .sarif/.sarif.json; .xml.
+The output file %s has an unsupported extension. Valid extensions include: .csv; .html/.htm; .json; .sarif/.sarif.json; .xml.
diff --git a/messages/run-command.md b/messages/run-command.md
index ee74f6edf..d001a3cc7 100644
--- a/messages/run-command.md
+++ b/messages/run-command.md
@@ -133,7 +133,6 @@ If you don't specify this flag, the command outputs the results in the terminal.
 - .csv
 - .html or .htm
 - .json
-- .junit or .junit.xml
 - .sarif or .sarif.json
 - .xml
 
diff --git a/src/lib/writers/ResultsWriter.ts b/src/lib/writers/ResultsWriter.ts
index 4fcae8a7c..0f6acf073 100644
--- a/src/lib/writers/ResultsWriter.ts
+++ b/src/lib/writers/ResultsWriter.ts
@@ -39,9 +39,6 @@ export class ResultsFileWriter implements ResultsWriter {
 		// Check for `.json` AFTER checking for `.sarif.json`!
 		} else if (ext === '.json') {
 			this.format = OutputFormat.JSON;
-		} else if (ext === '.junit' || file.toLowerCase().endsWith('.junit.xml')) {
-			throw new Error('TODO: Support JUNIT-type output');
-		// Check for `.xml` AFTER checking for `.junit.xml`!
 		} else if (ext === '.xml') {
 			this.format = OutputFormat.XML;
 		} else {
diff --git a/test/lib/writers/ResultsWriter.test.ts b/test/lib/writers/ResultsWriter.test.ts
index 9fc6a6c02..b8f2ca632 100644
--- a/test/lib/writers/ResultsWriter.test.ts
+++ b/test/lib/writers/ResultsWriter.test.ts
@@ -23,8 +23,6 @@ describe('ResultsWriter implementations', () => {
 			{ext: '.html', expectedOutput: `Results formatted as ${OutputFormat.HTML}`},
 			{ext: '.htm', expectedOutput: `Results formatted as ${OutputFormat.HTML}`},
 			{ext: '.json', expectedOutput: `Results formatted as ${OutputFormat.JSON}`},
-			//{ext: '.junit', expectedOutput: `Results formatted as ${OutputFormat.JUNIT}`},
-			//{ext: '.junit.xml', expectedOutput: `Results formatted as ${OutputFormat.JUNIT}`},
 			//{ext: '.sarif', expectedOutput: `Results formatted as ${OutputFormat.SARIF}`},
 			//{ext: '.sarif.json', expectedOutput: `Results formatted as ${OutputFormat.SARIF}`},
 			{ext: '.xml', expectedOutput: `Results formatted as ${OutputFormat.XML}`}
@@ -48,8 +46,6 @@ describe('ResultsWriter implementations', () => {
 		 * in the case array for the valid format tests.
 		 */
 		it.each([
-			{ext: '.junit'},
-			{ext: '.junit.xml'},
 			{ext: '.sarif'},
 			{ext: '.sarif.json'}
 		])('Throws TODO error for not-yet-supported format: *$ext', ({ext}) => {