diff --git a/Makefile b/Makefile
index 87284fb..690a43c 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 # Multi-OrBAC: Organization-Based Access Control
 
 EXTENSION = morbac_pg
-EXTVERSION = 1.0
+EXTVERSION = 1.0.0
 
 DATA = $(EXTENSION)--$(EXTVERSION).sql
 DOCS = README.md
diff --git a/README.md b/README.md
index baa03a9..9abc647 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ psql -d mydb -c "CREATE EXTENSION morbac_pg;"
 ```bash
 # Copy files to PostgreSQL extension directory
 sudo cp morbac_pg.control $(pg_config --sharedir)/extension/
-sudo cp morbac_pg--1.0.sql $(pg_config --sharedir)/extension/
+sudo cp morbac_pg--1.0.0.sql $(pg_config --sharedir)/extension/
 
 # Enable in PostgreSQL
 psql -d mydb -c "CREATE EXTENSION morbac_pg;"
diff --git a/install.sh b/install.sh
index 7cbd904..c9974b9 100755
--- a/install.sh
+++ b/install.sh
@@ -42,7 +42,7 @@ fi
 # Copy extension files
 echo "Installing extension files..."
 cp -v morbac_pg.control "$EXTDIR/"
-cp -v morbac_pg--1.0.sql "$EXTDIR/"
+cp -v morbac_pg--1.0.0.sql "$EXTDIR/"
 
 echo ""
 echo "=================================="
diff --git a/morbac_pg--1.0.sql b/morbac_pg--1.0.0.sql
similarity index 99%
rename from morbac_pg--1.0.sql
rename to morbac_pg--1.0.0.sql
index 55d8503..95782bc 100644
--- a/morbac_pg--1.0.sql
+++ b/morbac_pg--1.0.0.sql
@@ -1,5 +1,5 @@
 -- =============================================================================
--- morbac_pg Extension - Version 1.0
+-- morbac_pg Extension - Version 1.0.0
 -- =============================================================================
 -- Multi-OrBAC: Organization-Based Access Control with Multi-Organization Support
 -- Based on the CNRS research paper on Multi-OrBAC model
diff --git a/morbac_pg.control b/morbac_pg.control
index 5447745..08dda36 100644
--- a/morbac_pg.control
+++ b/morbac_pg.control
@@ -1,7 +1,7 @@
 # morbac_pg extension
 # Multi-OrBAC access control model for PostgreSQL
 comment = 'Multi-OrBAC: Organization-Based Access Control with multi-organization support'
-default_version = '1.0'
+default_version = '1.0.0'
 module_pathname = '$libdir/morbac_pg'
 relocatable = false
 schema = morbac