diff --git a/elixir-language-configuration.json b/elixir-language-configuration.json
index 21002ad..95c007b 100644
--- a/elixir-language-configuration.json
+++ b/elixir-language-configuration.json
@@ -22,6 +22,7 @@
     { "open": "~D\"", "close": "\"" },
     { "open": "~E\"", "close": "\"" },
     { "open": "~L\"", "close": "\"" },
+    { "open": "~H\"", "close": "\"" },
     { "open": "~N\"", "close": "\"" },
     { "open": "~R\"", "close": "\"" },
     { "open": "~S\"", "close": "\"" },
@@ -39,6 +40,7 @@
     { "open": "~D\"\"\"", "close": "\"\"\"" },
     { "open": "~E\"\"\"", "close": "\"\"\"" },
     { "open": "~L\"\"\"", "close": "\"\"\"" },
+    { "open": "~H\"\"\"", "close": "\"\"\"" },
     { "open": "~N\"\"\"", "close": "\"\"\"" },
     { "open": "~R\"\"\"", "close": "\"\"\"" },
     { "open": "~S\"\"\"", "close": "\"\"\"" },
diff --git a/syntaxes/elixir.json b/syntaxes/elixir.json
index ecddf32..74f5386 100644
--- a/syntaxes/elixir.json
+++ b/syntaxes/elixir.json
@@ -1563,7 +1563,7 @@
     },
     {
       "comment": "Embedded Liveview heredoc with double quotes",
-      "begin": "\\s?(~L\"\"\")$",
+      "begin": "\\s?(~(L|H)\"\"\")$",
       "beginCaptures": {
         "0": {
           "name": "punctuation.definition.string.begin.elixir"
@@ -1617,7 +1617,7 @@
     },
     {
       "comment": "Embededd Liveview heredoc with single quotes",
-      "begin": "\\s?(~L''')$",
+      "begin": "\\s?(~(L|H)''')$",
       "beginCaptures": {
         "0": {
           "name": "punctuation.definition.string.begin.elixir"