diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 95fe959..486c548 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -103,16 +103,28 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="hidl" optional="false">
+    <hal format="hidl" optional="true">
         <name>android.hardware.drm</name>
         <version>1.0</version>
         <interface>
             <name>ICryptoFactory</name>
-            <instance>default</instance>
+            <regex-instance>.*</regex-instance>
         </interface>
         <interface>
             <name>IDrmFactory</name>
-            <instance>default</instance>
+            <regex-instance>.*</regex-instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="false">
+        <name>android.hardware.drm</name>
+        <version>1.1</version>
+        <interface>
+            <name>ICryptoFactory</name>
+            <regex-instance>.*</regex-instance>
+        </interface>
+        <interface>
+            <name>IDrmFactory</name>
+            <regex-instance>.*</regex-instance>
         </interface>
     </hal>
     <hal format="hidl" optional="true">