diff --git a/src/main/java/land/oras/ArtifactType.java b/src/main/java/land/oras/ArtifactType.java
index bd0aa2ea..f3ec7904 100644
--- a/src/main/java/land/oras/ArtifactType.java
+++ b/src/main/java/land/oras/ArtifactType.java
@@ -57,7 +57,7 @@ public static ArtifactType from(@Nullable String artifactType) {
             return unknown();
         }
         // Must match https://datatracker.ietf.org/doc/html/rfc6838
-        if (!artifactType.matches("^[a-zA-Z0-9!#$&-^_]+/[a-zA-Z0-9!#$&-^_]+$")) {
+        if (!artifactType.matches("^[a-zA-Z0-9!#$%&'*+.^_`{|}~-]+/[a-zA-Z0-9!#$%&'*+.^_`{|}~-]+$")) {
             throw new OrasException("Invalid artifact type: %s".formatted(artifactType));
         }
         return new ArtifactType(artifactType);