diff --git a/application/src/main/java/net/corda/v5/application/interop/parameters/ParameterTypeLabel.java b/application/src/main/java/net/corda/v5/application/interop/parameters/ParameterTypeLabel.java
index aa2a408d76..43a23acf6b 100644
--- a/application/src/main/java/net/corda/v5/application/interop/parameters/ParameterTypeLabel.java
+++ b/application/src/main/java/net/corda/v5/application/interop/parameters/ParameterTypeLabel.java
@@ -18,7 +18,6 @@ public enum ParameterTypeLabel {
     TIMESTAMP(ZonedDateTime.class),
     BYTES(ByteBuffer.class),
     JSON(String.class),
-
     SIGNED_TX(DigitalSignatureAndMetadata.class);
 
     @NotNull
diff --git a/gradle.properties b/gradle.properties
index 5e0259e192..31ad01706d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -12,7 +12,7 @@ cordaProductVersion = 5.1.0-INTEROP
 ## IMPORTANT:
 ## The interop feature branches track api revisions separately to the mainline branch.
 ## API version of last merge from corda mainline: 19
-cordaApiRevision = 20.Jim
+cordaApiRevision = 21
 
 # Main
 kotlinVersion = 1.8.21