diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5babe6f..38771df 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,9 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        # important to check a pre-23 version that still uses nodetool
-        # plus 23 once it is released
-        otp_version: [22.3.2]
+        otp_version: [19.3.6, 20.3.8.26, 21.3.8.16, 22.3.4.2, 23.0.2]
         os: [ubuntu-latest]
 
     steps:
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 266608d..0000000
--- a/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-all: deps
-
-deps:
-	rebar get-deps
-	rebar compile
-
-app:
-	rebar compile
-
-tests:
-	rebar eunit
-
-clean:
-	rebar clean
-
-distclean: clean
-	rebar delete-deps
-
-.PHONY: all deps app tests clean distclean
\ No newline at end of file