diff --git a/.github/workflows/erlang.yaml b/.github/workflows/erlang.yaml
index 18b0560..8982e80 100644
--- a/.github/workflows/erlang.yaml
+++ b/.github/workflows/erlang.yaml
@@ -11,11 +11,7 @@ jobs:
               'DIR=27', 'DIR=27 VARIANT=slim', 'DIR=27 VARIANT=alpine',
               'DIR=26', 'DIR=26 VARIANT=slim', 'DIR=26 VARIANT=alpine',
               'DIR=25', 'DIR=25 VARIANT=slim', 'DIR=25 VARIANT=alpine',
-              'DIR=24', 'DIR=24 VARIANT=slim', 'DIR=24 VARIANT=alpine',
-              'DIR=23', 'DIR=23 VARIANT=slim',
-              'DIR=22', 'DIR=22 VARIANT=slim',
-              'DIR=21', 'DIR=21 VARIANT=slim',
-              'DIR=20', 'DIR=20 VARIANT=slim']
+              'DIR=24', 'DIR=24 VARIANT=slim', 'DIR=24 VARIANT=alpine']
       fail-fast: false
     steps:
     - uses: actions/checkout@v3
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index 5e6d32f..3ba9cf3 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -eu
 
-declare -a -r versions=(27 26 25 24 23 22 21 20 )
+declare -a -r versions=(27 26 25 24)
 declare -A -r aliases=(
 	[27]='latest'
 )