diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0f14704..7fcb507 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,7 +23,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
-        python-version: '3.7'
+        python-version: '3.12'
         check-latest: true
     - name: Setup databases
       run: |
@@ -56,7 +56,7 @@ jobs:
 
     - name: Create Release
       if: ${{ github.ref == 'refs/heads/main' }}
-      uses: actions/github-script@v6
+      uses: actions/github-script@v7
       with:
         github-token: ${{ github.token }}
         script: |
diff --git a/Dockerfile b/Dockerfile
index ccc4552..dddd430 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM cs50/cli
 
-RUN sudo apt update && sudo apt install --yes libmysqlclient-dev pgloader postgresql
+RUN sudo apt update && sudo apt install --yes libmysqlclient-dev pgloader pkg-config postgresql
 RUN sudo pip3 install mysqlclient psycopg2-binary
 
 WORKDIR /mnt
diff --git a/README.md b/README.md
index c94bd1f..a9033c6 100644
--- a/README.md
+++ b/README.md
@@ -39,50 +39,3 @@ s = cs50.get_string();
     ```
     python tests/sql.py
     ```
-
-### Sample Tests
-
-```
-import cs50
-db = cs50.SQL("sqlite:///foo.db")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id INTEGER PRIMARY KEY, val TEXT, bin BLOB)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-
----
-
-import cs50
-db = cs50.SQL("mysql://root@localhost/test")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id INTEGER PRIMARY KEY, val TEXT, bin BLOB)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-
----
-
-import cs50
-db = cs50.SQL("postgresql://postgres@localhost/test")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id SERIAL PRIMARY KEY, val VARCHAR(16), bin BYTEA)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-```
diff --git a/docker-compose.yml b/docker-compose.yml
index 8608080..bcca424 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -31,4 +31,3 @@ services:
       POSTGRES_DB: test
     ports:
     - 5432:5432
-version: "3.6"
diff --git a/setup.py b/setup.py
index 6fd6cfa..1817b95 100644
--- a/setup.py
+++ b/setup.py
@@ -18,5 +18,5 @@
     package_dir={"": "src"},
     packages=["cs50"],
     url="https://github.com/cs50/python-cs50",
-    version="9.3.4"
+    version="9.4.0"
 )
diff --git a/src/cs50/sql.py b/src/cs50/sql.py
index cbbd3d2..81905bc 100644
--- a/src/cs50/sql.py
+++ b/src/cs50/sql.py
@@ -177,6 +177,7 @@ def execute(self, sql, *args, **kwargs):
             "SELECT",
             "START",
             "UPDATE",
+            "VACUUM",
         }
 
         # Check if the full_statement starts with any command
@@ -328,12 +329,12 @@ def execute(self, sql, *args, **kwargs):
                 sqlparse.tokens.Literal.String,
                 sqlparse.tokens.Literal.String.Single,
             ]:
-                token.value = re.sub("(^'|\s+):", r"\1\:", token.value)
+                token.value = re.sub(r"(^'|\s+):", r"\1\:", token.value)
 
             # In identifier
             # https://www.sqlite.org/lang_keywords.html
             elif token.ttype == sqlparse.tokens.Literal.String.Symbol:
-                token.value = re.sub('(^"|\s+):', r"\1\:", token.value)
+                token.value = re.sub(r'(^"|\s+):', r"\1\:", token.value)
 
         # Join tokens into statement
         statement = "".join([str(token) for token in tokens])
@@ -378,7 +379,7 @@ def teardown_appcontext(exception):
                 )
 
                 # Check for start of transaction
-                if command in ["BEGIN", "START"]:
+                if command in ["BEGIN", "START", "VACUUM"]:  # cannot VACUUM from within a transaction
                     self._autocommit = False
 
                 # Execute statement
@@ -389,7 +390,7 @@ def teardown_appcontext(exception):
                     connection.execute(sqlalchemy.text("COMMIT"))
 
                 # Check for end of transaction
-                if command in ["COMMIT", "ROLLBACK"]:
+                if command in ["COMMIT", "ROLLBACK", "VACUUM"]:  # cannot VACUUM from within a transaction
                     self._autocommit = True
 
                 # Return value