diff --git a/Makefile b/Makefile
index bf3122b..3bf444f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,31 +1,31 @@
 .PHONY: hello
 hello:
 	rm -f ./html/*
-	GOOS=js GOARCH=wasm go1.11beta3 build -o ./html/test.wasm ./hello/main.go
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
+	GOOS=js GOARCH=wasm go1.11rc1 build -o ./html/test.wasm ./hello/main.go
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
 
 .PHONY: channels
 channels:
 	rm -f ./html/*
-	GOOS=js GOARCH=wasm go1.11beta3 build -o ./html/test.wasm ./channels/main.go
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
+	GOOS=js GOARCH=wasm go1.11rc1 build -o ./html/test.wasm ./channels/main.go
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
 
 .PHONY: js
 js:
 	rm -f ./html/*
-	GOOS=js GOARCH=wasm go1.11beta3 build -o ./html/test.wasm ./js/main.go
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
+	GOOS=js GOARCH=wasm go1.11rc1 build -o ./html/test.wasm ./js/main.go
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
 	sed -i -e 's;</button>;</button>\n\t<div id=\"target\"></div>;' ./html/index.html
 
 .PHONY: fetch
 fetch:
 	rm -f ./html/*
-	GOOS=js GOARCH=wasm go1.11beta3 build -o ./html/test.wasm ./fetch/main.go
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
-	cp $$(go1.11beta3 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
+	GOOS=js GOARCH=wasm go1.11rc1 build -o ./html/test.wasm ./fetch/main.go
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.html ./html/index.html
+	cp $$(go1.11rc1 env GOROOT)/misc/wasm/wasm_exec.js ./html/wasm_exec.js
 	sed -i -e 's;</button>;</button>\n\t<div id=\"target\"></div>;' ./html/index.html
 
 serve:
diff --git a/README.md b/README.md
index f99e67f..b18cf83 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,4 @@ Just some playing around with the new experimental Go WASM arch target
 
 ## Requirements
 
-Requires `go1.11beta3`
+Requires `go1.11rc1`
diff --git a/html/test.wasm b/html/test.wasm
index 679c52a..d8c419f 100755
Binary files a/html/test.wasm and b/html/test.wasm differ