diff --git a/.github/actions/setup-build/action.yaml b/.github/actions/setup-build/action.yaml
index 3a234b75..56a492a6 100644
--- a/.github/actions/setup-build/action.yaml
+++ b/.github/actions/setup-build/action.yaml
@@ -41,7 +41,7 @@ runs:
           baseVersion="$(sbt 'eval Build.baseVersion' | grep 'ans: String =' | xargs | awk '{ print $5 }')"
 
           buildMavenRepo="${baseMavenRepo}/${baseVersion}-${commitDate}-${commitHash}"
-          scalaVersion="$(sbt --error 'print scala3-compiler-bootstrapped/version' | head -n 1 | xargs)"
+          scalaVersion="$(sbt --error 'print scala3-compiler-bootstrapped/version' | grep "3." | tail -n 1 | xargs)"
         fi
 
 
diff --git a/compiler-builder/build.sh b/compiler-builder/build.sh
index 90e9e08f..2f5aa9fa 100755
--- a/compiler-builder/build.sh
+++ b/compiler-builder/build.sh
@@ -17,7 +17,7 @@ echo '##################################'
 
 cd "$repoDir"
 
-compilerVersion="$(sbt --error 'print scala3-compiler-bootstrapped/version' | head -n 1 | xargs)"
+compilerVersion="$(sbt --error 'print scala3-compiler-bootstrapped/version' | grep "3." | tail -n 1 | xargs)"
 if [[ "$scalaVersion" != "$compilerVersion" ]]; then 
   echo "Configured version $scalaVersion does not match compiler version $compilerVersion"
   exit 1
diff --git a/scripts/build-all.sh b/scripts/build-all.sh
index d5f21a28..4f318dc1 100755
--- a/scripts/build-all.sh
+++ b/scripts/build-all.sh
@@ -7,7 +7,7 @@ if [ $# -ne 1 ]; then
 fi
 
 VERSION="$1"
-export PREV_CB_VERSION="0.3.18"
+export PREV_CB_VERSION="0.3.19"
 
 javaDefault=11
 javaAccessoryVersions=(8 17 21)