diff --git a/.changeset/netail-highlight-subscription.md b/.changeset/netail-highlight-subscription.md
new file mode 100644
index 00000000000..fca7768684a
--- /dev/null
+++ b/.changeset/netail-highlight-subscription.md
@@ -0,0 +1,5 @@
+---
+'vscode-graphql-syntax': patch
+---
+
+Add syntax highlighting support for subscription operations.
diff --git a/packages/vscode-graphql-syntax/grammars/graphql.json b/packages/vscode-graphql-syntax/grammars/graphql.json
index 3790a9dee49..f88f5672a34 100644
--- a/packages/vscode-graphql-syntax/grammars/graphql.json
+++ b/packages/vscode-graphql-syntax/grammars/graphql.json
@@ -22,7 +22,7 @@
     },
     "graphql-operation-def": {
       "patterns": [
-        { "include": "#graphql-query-mutation" },
+        { "include": "#graphql-query-mutation-subscription" },
         { "include": "#graphql-name" },
         { "include": "#graphql-variable-definitions" },
         { "include": "#graphql-directive" },
@@ -55,8 +55,8 @@
         { "include": "#literal-quasi-embedded" }
       ]
     },
-    "graphql-query-mutation": {
-      "match": "\\s*\\b(query|mutation)\\b",
+    "graphql-query-mutation-subscription": {
+      "match": "\\s*\\b(query|mutation|subscription)\\b",
       "captures": {
         "1": { "name": "keyword.operation.graphql" }
       }
diff --git a/packages/vscode-graphql-syntax/tests/__snapshots__/graphql-grammar.spec.ts.snap b/packages/vscode-graphql-syntax/tests/__snapshots__/graphql-grammar.spec.ts.snap
index 8bf9ac2bea9..c70bb28ed78 100644
--- a/packages/vscode-graphql-syntax/tests/__snapshots__/graphql-grammar.spec.ts.snap
+++ b/packages/vscode-graphql-syntax/tests/__snapshots__/graphql-grammar.spec.ts.snap
@@ -200,7 +200,7 @@ newString                                                     | meta.selectionse
 )                                                             | meta.selectionset.graphql meta.arguments.graphql meta.brace.round.directive.graphql
 }                                                             | meta.selectionset.graphql punctuation.operation.graphql
                                                               | 
-subscription                                                  | entity.name.function.graphql
+subscription                                                  | keyword.operation.graphql
                                                               | 
 subscriptionName                                              | entity.name.function.graphql
                                                               | meta.selectionset.graphql