diff --git a/crates/languages/src/c/highlights.scm b/crates/languages/src/c/highlights.scm
index 634f8d81c4ad9351fe342b92f2c23dbe5c70969c..ef15a4b3453630fada2339c0b6d67289bfff49cf 100644
--- a/crates/languages/src/c/highlights.scm
+++ b/crates/languages/src/c/highlights.scm
@@ -102,8 +102,9 @@
 [
   (true)
   (false)
-  (null)
-] @constant
+] @boolean
+
+(null) @constant
 
 (identifier) @variable
 
diff --git a/crates/languages/src/cpp/highlights.scm b/crates/languages/src/cpp/highlights.scm
index 2df9ec2923be3de9b3e3453c262d311089c82056..2a8235de1fa33e4ae5a5583bb30c9482f5628ba8 100644
--- a/crates/languages/src/cpp/highlights.scm
+++ b/crates/languages/src/cpp/highlights.scm
@@ -153,6 +153,9 @@ type :(primitive_type) @type.primitive
 [
   (true)
   (false)
+] @boolean
+
+[
   (null)
   ("nullptr")
 ] @constant
diff --git a/crates/languages/src/go/highlights.scm b/crates/languages/src/go/highlights.scm
index 609c49c13f53cf2a72515e00880526897f6c6b27..7e594a5c1262c348f6f07b01e58b8d80efe29a2a 100644
--- a/crates/languages/src/go/highlights.scm
+++ b/crates/languages/src/go/highlights.scm
@@ -118,6 +118,9 @@
 [
   (true)
   (false)
+] @boolean
+
+[
   (nil)
   (iota)
 ] @constant.builtin
diff --git a/crates/languages/src/json/highlights.scm b/crates/languages/src/json/highlights.scm
index 8cf7a6d20dc6c734657801027cc1d948b85c4263..c3186af264e4b610c61e258e4342e039e78c33ec 100644
--- a/crates/languages/src/json/highlights.scm
+++ b/crates/languages/src/json/highlights.scm
@@ -11,6 +11,9 @@
 [
   (true)
   (false)
+] @boolean
+
+[
   (null)
 ] @constant
 
diff --git a/crates/languages/src/jsonc/highlights.scm b/crates/languages/src/jsonc/highlights.scm
index 8cf7a6d20dc6c734657801027cc1d948b85c4263..c3186af264e4b610c61e258e4342e039e78c33ec 100644
--- a/crates/languages/src/jsonc/highlights.scm
+++ b/crates/languages/src/jsonc/highlights.scm
@@ -11,6 +11,9 @@
 [
   (true)
   (false)
+] @boolean
+
+[
   (null)
 ] @constant
 
diff --git a/crates/languages/src/python/highlights.scm b/crates/languages/src/python/highlights.scm
index 0495f87716bd2176cfc50a79a667a6049f51ef33..e3e38aafedf52ac9212d6392377d225c8246c4b7 100644
--- a/crates/languages/src/python/highlights.scm
+++ b/crates/languages/src/python/highlights.scm
@@ -95,9 +95,12 @@
 ; Literals
 
 [
-  (none)
   (true)
   (false)
+] @boolean
+
+[
+  (none)
   (ellipsis)
 ] @constant.builtin
 
diff --git a/crates/languages/src/rust/highlights.scm b/crates/languages/src/rust/highlights.scm
index d25b8a734719bacc2eeaffc8874ac21432fc1021..bd5221f1e609eec557876bba6911d42ec17f3de6 100644
--- a/crates/languages/src/rust/highlights.scm
+++ b/crates/languages/src/rust/highlights.scm
@@ -129,7 +129,7 @@
   (float_literal)
 ] @number
 
-(boolean_literal) @constant
+(boolean_literal) @boolean
 
 [
   (line_comment)