diff --git a/CHANGELOG.md b/CHANGELOG.md
index a58d438e3..60b28a87e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- Add SPARQL JSON (`srj`) output format for results in [`query`]
+
 ## [1.9.11] - 2026-10-01
 
 ### Added
diff --git a/robot-core/src/main/java/org/obolibrary/robot/QueryOperation.java b/robot-core/src/main/java/org/obolibrary/robot/QueryOperation.java
index 6c0a888e7..f0122ffba 100644
--- a/robot-core/src/main/java/org/obolibrary/robot/QueryOperation.java
+++ b/robot-core/src/main/java/org/obolibrary/robot/QueryOperation.java
@@ -539,6 +539,9 @@ public static Lang getFormatLang(String formatName) {
       case "sxml":
         format = ResultSetLang.SPARQLResultSetXML;
         break;
+      case "srj":
+        format = ResultSetLang.SPARQLResultSetJSON;
+        break;
       default:
         format = null;
     }