diff --git a/CHANGELOG.md b/CHANGELOG.md
index eda003b1..6037d223 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -69,6 +69,7 @@
 - Updated Catppuccin, see #3333 (@SchweGELBin)
 - Updated gruvbox, see #3372 (@Nicholas42)
 - Updated GitHub theme, see #3382 (@CosmicHorrorDev)
+- Updated ANSI theme to highlight JSON object keys differently from values, see #3413 (@keith-hall)
 
 ## `bat` as a library
 
diff --git a/assets/themes.bin b/assets/themes.bin
index 080f0d94..c7a0ba99 100644
Binary files a/assets/themes.bin and b/assets/themes.bin differ
diff --git a/assets/themes/ansi.tmTheme b/assets/themes/ansi.tmTheme
index f103b418..6db89c40 100644
--- a/assets/themes/ansi.tmTheme
+++ b/assets/themes/ansi.tmTheme
@@ -234,7 +234,7 @@
                 <key>name</key>
                 <string>Headings</string>
                 <key>scope</key>
-                <string>markup.heading punctuation.definition.heading, entity.name.section, markup.heading - text.html.markdown</string>
+                <string>markup.heading punctuation.definition.heading, entity.name.section, markup.heading - text.html.markdown, meta.mapping.key string.quoted.double</string>
                 <key>settings</key>
                 <dict>
                     <key>fontStyle</key>
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index 75021eb5..1748a3d0 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -2404,6 +2404,24 @@ fn ansi_highlight_underline() {
         .stderr("");
 }
 
+// we don't really test other color schemes in the syntax-tests/source vs highlighted stuff
+// so here a simple integration test has been made for the ANSI theme,
+// which lives directly inside the bat repository
+#[test]
+fn ansi_highlight_json_keys() {
+    bat()
+        .arg("--paging=never")
+        .arg("--color=always")
+        .arg("--decorations=never")
+        .arg("--theme=ansi")
+        .arg("--language=json")
+        .write_stdin("{\"foo\": \"bar\", \"test\": [123, \"baz\"] }")
+        .assert()
+        .success()
+        .stdout("{\x1B[34m\"\x1B[0m\x1B[34mfoo\x1B[0m\x1B[34m\"\x1B[0m: \x1B[32m\"\x1B[0m\x1B[32mbar\x1B[0m\x1B[32m\"\x1B[0m, \x1B[34m\"\x1B[0m\x1B[34mtest\x1B[0m\x1B[34m\"\x1B[0m: [\x1B[33m123\x1B[0m, \x1B[32m\"\x1B[0m\x1B[32mbaz\x1B[0m\x1B[32m\"\x1B[0m] }")
+        .stderr("");
+}
+
 // Ensure that ANSI passthrough is emitted properly for both wrapping and non-wrapping printer.
 // See https://github.com/sharkdp/bat/issues/2307 for what common use case this test tests.
 #[test]