diff --git a/corpus/strings.txt b/corpus/strings.txt
index dc13b0d..ee0aa62 100644
--- a/corpus/strings.txt
+++ b/corpus/strings.txt
@@ -15,10 +15,19 @@ CMD ["\b\f\n\r\t\u0ABC\u12Cd"]
       (json_string)))
   (cmd_instruction
     (json_string_array
-      (json_string)))
+      (json_string
+        (escape_sequence)
+        (escape_sequence))))
   (cmd_instruction
     (json_string_array
-      (json_string))))
+      (json_string
+        (escape_sequence)
+        (escape_sequence)
+        (escape_sequence)
+        (escape_sequence)
+        (escape_sequence)
+        (escape_sequence)
+        (escape_sequence)))))
 
 ==========================
 Double-quoted strings
@@ -48,12 +57,12 @@ ENV KEY "expansions: $FOO ${BAR}"
     (env_pair
       (unquoted_string)
       (double_quoted_string
-        (double_quoted_escape_sequence))))
+        (escape_sequence))))
   (env_instruction
     (env_pair
       (unquoted_string)
       (double_quoted_string
-        (double_quoted_escape_sequence))))
+        (escape_sequence))))
   (env_instruction
     (env_pair
       (unquoted_string)
@@ -94,13 +103,13 @@ ENV KEY 'not escape sequences: \a \n'
     (env_pair
       (unquoted_string)
       (single_quoted_string
-        (single_quoted_escape_sequence)
-        (single_quoted_escape_sequence))))
+        (escape_sequence)
+        (escape_sequence))))
   (env_instruction
     (env_pair
       (unquoted_string)
       (single_quoted_string
-        (single_quoted_escape_sequence))))
+        (escape_sequence))))
   (env_instruction
     (env_pair
       (unquoted_string)
diff --git a/grammar.js b/grammar.js
index d59f61c..1f565ff 100644
--- a/grammar.js
+++ b/grammar.js
@@ -382,7 +382,20 @@ module.exports = grammar({
     // Note that JSON strings are different from the other double-quoted
     // strings. They don't support $-expansions.
     // Convenient reference: https://www.json.org/
-    json_string: ($) => /"(?:[^"\\]|\\(?:["\\/bfnrt]|u[0-9A-Fa-f]{4}))*"/,
+    json_string: ($) => seq(
+      '"',
+      repeat(
+        choice(
+          token.immediate(/[^"\\]+/),
+          alias($.json_escape_sequence, $.escape_sequence)
+        )
+      ),
+      '"'
+    ),
+
+    json_escape_sequence: ($) => token.immediate(
+      /\\(?:["\\/bfnrt]|u[0-9A-Fa-f]{4})/
+    ),
 
     double_quoted_string: ($) =>
       seq(
@@ -390,7 +403,7 @@ module.exports = grammar({
         repeat(
           choice(
             token.immediate(/[^"\n\\\$]+/),
-            $.double_quoted_escape_sequence,
+            alias($.double_quoted_escape_sequence, $.escape_sequence),
             "\\",
             $._immediate_expansion
           )
@@ -405,7 +418,7 @@ module.exports = grammar({
         repeat(
           choice(
             token.immediate(/[^'\n\\]+/),
-            $.single_quoted_escape_sequence,
+            alias($.single_quoted_escape_sequence, $.escape_sequence),
             "\\",
           )
         ),