diff --git a/CITATION b/CITATION.md
similarity index 100%
rename from CITATION
rename to CITATION.md
diff --git a/FUNDING b/FUNDING.md
similarity index 100%
rename from FUNDING
rename to FUNDING.md
diff --git a/LICENSE b/LICENSE.md
similarity index 100%
rename from LICENSE
rename to LICENSE.md
diff --git a/RELEASE-NOTES b/RELEASE-NOTES.md
similarity index 100%
rename from RELEASE-NOTES
rename to RELEASE-NOTES.md
diff --git a/pom.xml b/pom.xml
index d9f2cb3..bbd3b23 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>org.rascalmpl</groupId>
             <artifactId>rascal</artifactId>
-            <version>0.34.0</version>
+            <version>0.40.7</version>
         </dependency>
     </dependencies>
 
@@ -71,9 +71,9 @@
             <plugin>
                 <groupId>org.rascalmpl</groupId>
                 <artifactId>rascal-maven-plugin</artifactId>
-                <version>0.23.1</version>
+                <version>0.28.1</version>
                 <configuration>
-                    <errorsAsWarnings>true</errorsAsWarnings>
+                    <errorsAsWarnings>false</errorsAsWarnings>
                     <bin>${project.build.outputDirectory}</bin>
                     <srcs>
                         <src>${project.basedir}/src/main/rascal</src>
@@ -104,9 +104,6 @@
                             <enableStandardLibrary>true</enableStandardLibrary>
                             <errorsAsWarnings>false</errorsAsWarnings>
                             <bin>${project.build.outputDirectory}</bin>
-                            <license>${project.basedir}/LICENSE</license>
-                            <funding>${project.basedir}/FUNDING</funding>
-                            <releaseNotes>${project.basedir}/RELEASE-NOTES</releaseNotes>
                             <sources>|http://github.com/usethesource/salix-core|</sources>
                             <issues>|http://github.com/usethesource/salix-core/issues|</issues>
                             <srcs>
diff --git a/src/main/rascal/salix/HTML.rsc b/src/main/rascal/salix/HTML.rsc
index 72c3fd7..e95a284 100644
--- a/src/main/rascal/salix/HTML.rsc
+++ b/src/main/rascal/salix/HTML.rsc
@@ -225,7 +225,6 @@ Attr seamless(bool val) = attr("seamless", "<val>");
 Attr srcdoc(str val) = attr("srcdoc", val);
 Attr reversed(bool val) = attr("reversed", "<val>");
 Attr \start(int val) = attr("start", "<val>");
-Attr align(str val) = attr("align", val);
 Attr colspan(int val) = attr("colspan", "<val>");
 Attr rowspan(int val) = attr("rowspan", "<val>");
 Attr headers(str val) = attr("headers", val);
@@ -254,7 +253,6 @@ Attr \datetime(str val) = attr("datetime", val);
 Attr pubdate(str val) = attr("pubdate", val);
 Attr manifest(str val) = attr("manifest", val);
 
-Attr valign(str val) = attr("valign", val);
 Attr cellpadding(str val) = attr("cellpadding", val);
 Attr cellspacing(str val) = attr("cellspacing", val);
 
@@ -288,7 +286,7 @@ Attr onSubmit(Msg msg) = event("submit", succeed(msg));
 Attr onBlur(Msg msg) = event("blur", succeed(msg));
 Attr onFocus(Msg msg) = event("focus", succeed(msg));
 
-Attr onCheck(Msg(bool) f) = event("change", targetChecked(f));
+Attr onCheck(Msg(bool) f) = event("check", targetChecked(f));
 
 Attr onInput(Msg(str) f) = event("input", targetValue(f)); 
 Attr onInput(Msg(int) f) = event("input", targetInt(f));
@@ -298,7 +296,7 @@ Attr onChange(Msg(int) f) = event("change", targetInt(f));
 Attr onChange(Msg(real) f) = event("change", targetReal(f));
 Attr onChange(Msg(str) f) = event("change", targetValue(f));
 
-Attr onCheck(Msg(bool) f) = event("check", targetChecked(f));
+Attr onChange(Msg(bool) f) = event("change", targetChecked(f));
   
 @doc{Smart constructors for constructing encoded event decoders.}
 Hnd succeed(Msg msg) = handler("succeed", encode(msg));