diff --git a/.github/scripts/release.sh b/.github/scripts/release.sh
index 57d2823..ebffc94 100644
--- a/.github/scripts/release.sh
+++ b/.github/scripts/release.sh
@@ -25,6 +25,24 @@ GIT_TOKEN=$1
 WORK_DIR=$2
 VERSION_TYPE=$3 # possible values: major, minor, patch
 
+ Check if GIT_TOKEN is empty
+if [ -z "$GIT_TOKEN" ]; then
+  echo "❌ Error: GIT_TOKEN is not set."
+  exit 1
+fi
+
+# Check if WORK_DIR is empty
+if [ -z "$WORK_DIR" ]; then
+  echo "❌ Error: WORK_DIR is not set."
+  exit 1
+fi
+
+# Validate VERSION_TYPE
+if [[ "$VERSION_TYPE" != "major" && "$VERSION_TYPE" != "minor" && "$VERSION_TYPE" != "patch" ]]; then
+  echo "❌ Error: VERSION_TYPE must be one of: major, minor, or patch."
+  exit 1
+fi
+
 BUILD_DIRECTORY="$WORK_DIR/build"
 RELEASE_DIRECTORY="$BUILD_DIRECTORY/releases"
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 63e56b6..e55f6b6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,9 +10,6 @@
 name: Release
 
 on:
-  pull_request:
-    branches: [ main ]
-    types: [closed]
   workflow_dispatch:
     inputs:
       version_type: