diff --git a/dist/index.js b/dist/index.js
index 129b7101..651c2cd9 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2657,7 +2657,7 @@ async function addExtensionDarwin(extension_csv, version, pipe) {
             // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
             case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
                 add_script +=
-                    'sh ' +
+                    '\nbash ' +
                         path.join(__dirname, '../src/scripts/ext/phalcon_darwin.sh') +
                         ' ' +
                         extension +
@@ -2811,7 +2811,7 @@ async function addExtensionLinux(extension_csv, version, pipe) {
             // match 5.6gearman..7.4gearman
             case /^((5\.6)|(7\.[0-4]))gearman$/.test(version_extension):
                 command =
-                    'sh ' +
+                    '\nbash ' +
                         path.join(__dirname, '../src/scripts/ext/gearman.sh') +
                         ' ' +
                         version +
@@ -2820,7 +2820,7 @@ async function addExtensionLinux(extension_csv, version, pipe) {
             // match 7.0phalcon3...7.3phalcon3 or 7.2phalcon4...7.4phalcon4
             case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
                 add_script +=
-                    '\nsh ' +
+                    '\nbash ' +
                         path.join(__dirname, '../src/scripts/ext/phalcon.sh') +
                         ' ' +
                         extension +
diff --git a/src/extensions.ts b/src/extensions.ts
index f38c565a..c925ad6f 100644
--- a/src/extensions.ts
+++ b/src/extensions.ts
@@ -98,7 +98,7 @@ export async function addExtensionDarwin(
       // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
       case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
         add_script +=
-          'sh ' +
+          '\nbash ' +
           path.join(__dirname, '../src/scripts/ext/phalcon_darwin.sh') +
           ' ' +
           extension +
@@ -267,7 +267,7 @@ export async function addExtensionLinux(
       // match 5.6gearman..7.4gearman
       case /^((5\.6)|(7\.[0-4]))gearman$/.test(version_extension):
         command =
-          'sh ' +
+          '\nbash ' +
           path.join(__dirname, '../src/scripts/ext/gearman.sh') +
           ' ' +
           version +
@@ -276,7 +276,7 @@ export async function addExtensionLinux(
       // match 7.0phalcon3...7.3phalcon3 or 7.2phalcon4...7.4phalcon4
       case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
         add_script +=
-          '\nsh ' +
+          '\nbash ' +
           path.join(__dirname, '../src/scripts/ext/phalcon.sh') +
           ' ' +
           extension +
diff --git a/src/scripts/ext/phalcon.sh b/src/scripts/ext/phalcon.sh
index 6ae5839d..7a56e3e3 100644
--- a/src/scripts/ext/phalcon.sh
+++ b/src/scripts/ext/phalcon.sh
@@ -36,7 +36,7 @@ tick="✓"
 cross="✗"
 
 if [ "$extension_major_version" = "4" ]; then
-  if [ -e "$ext_dir/psr.so" ]; then
+  if [ -e "$ext_dir/psr.so" ] && ! php -m | grep -i -q -w psr; then
     echo "extension=psr.so" | sudo tee -a "$ini_file" >/dev/null 2>&1
   fi
 
diff --git a/src/scripts/ext/phalcon_darwin.sh b/src/scripts/ext/phalcon_darwin.sh
index 0297eed2..d1edf06d 100644
--- a/src/scripts/ext/phalcon_darwin.sh
+++ b/src/scripts/ext/phalcon_darwin.sh
@@ -13,6 +13,7 @@ add_log() {
 # Function to install phalcon
 install_phalcon() {
   (
+    sed -i '' '/extension.*psr/d' "$ini_file"
     brew tap shivammathur/homebrew-phalcon >/dev/null 2>&1
     brew install phalcon@"$php_version"_"$extension_major" >/dev/null 2>&1
     sudo cp /usr/local/opt/psr@"$php_version"/psr.so "$ext_dir" >/dev/null 2>&1
@@ -27,14 +28,17 @@ extension=$1
 extension_major=${extension: -1}
 php_version=$2
 semver=$(php -v | head -n 1 | cut -f 2 -d ' ')
-ini_file=$(php -d "date.timezone=UTC" --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
+ini_file=$(php --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
 ext_dir=$(php -i | grep "extension_dir => /usr" | sed -e "s|.*=> s*||")
 if [ -e "$ext_dir/psr.so" ] && [ -e "$ext_dir/phalcon.so" ]; then
-  phalcon_version=$(php -d="extension=psr.so" -d="extension=phalcon.so" -r "echo phpversion('phalcon');" | cut -d'.' -f 1)
+  phalcon_version=$(php -d="extension=psr.so" -d="extension=phalcon.so" -r "echo phpversion('phalcon');" 2>/dev/null | cut -d'.' -f 1)
+  if php -m | grep -i -q -w psr; then
+    phalcon_version=$(php -d="extension=phalcon.so" -r "echo phpversion('phalcon');" 2>/dev/null | cut -d'.' -f 1)
+  fi
   if [ "$phalcon_version" != "$extension_major" ]; then
     install_phalcon
   else
-    echo "extension=psr.so" >>"$ini_file"
+    if ! php -m | grep -i -q -w psr; then echo "extension=psr.so" >>"$ini_file"; fi
     echo "extension=phalcon.so" >>"$ini_file"
     add_log "$tick" "$extension" "Enabled"
   fi