diff --git a/.changes/unreleased/Fixes-20241211-202907.yaml b/.changes/unreleased/Fixes-20241211-202907.yaml
new file mode 100644
index 00000000..3a3ab3b8
--- /dev/null
+++ b/.changes/unreleased/Fixes-20241211-202907.yaml
@@ -0,0 +1,7 @@
+kind: Fixes
+body: Allow boolean values in the cert parameter
+time: 2024-12-11T20:29:07.954737+01:00
+custom:
+  Author: damian3031
+  Issue: ""
+  PR: "460"
diff --git a/dbt/adapters/trino/connections.py b/dbt/adapters/trino/connections.py
index f76bd055..86d7eeec 100644
--- a/dbt/adapters/trino/connections.py
+++ b/dbt/adapters/trino/connections.py
@@ -6,7 +6,7 @@
 from dataclasses import dataclass, field
 from datetime import date, datetime
 from enum import Enum
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Optional, Union
 
 import sqlparse
 import trino
@@ -99,7 +99,7 @@ class TrinoNoneCredentials(TrinoCredentials):
     user: str
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_scheme: HttpScheme = HttpScheme.HTTP
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
@@ -124,7 +124,7 @@ class TrinoCertificateCredentials(TrinoCredentials):
     user: Optional[str] = None
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
     prepared_statements_enabled: bool = PREPARED_STATEMENTS_ENABLED_DEFAULT
@@ -154,7 +154,7 @@ class TrinoLdapCredentials(TrinoCredentials):
     impersonation_user: Optional[str] = None
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
     prepared_statements_enabled: bool = PREPARED_STATEMENTS_ENABLED_DEFAULT
@@ -185,7 +185,7 @@ class TrinoKerberosCredentials(TrinoCredentials):
     krb5_config: Optional[str] = None
     service_name: Optional[str] = "trino"
     mutual_authentication: Optional[bool] = False
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     force_preemptive: Optional[bool] = False
     hostname_override: Optional[str] = None
@@ -227,7 +227,7 @@ class TrinoJwtCredentials(TrinoCredentials):
     user: Optional[str] = None
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
     prepared_statements_enabled: bool = PREPARED_STATEMENTS_ENABLED_DEFAULT
@@ -253,7 +253,7 @@ class TrinoOauthCredentials(TrinoCredentials):
     user: Optional[str] = None
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
     prepared_statements_enabled: bool = PREPARED_STATEMENTS_ENABLED_DEFAULT
@@ -282,7 +282,7 @@ class TrinoOauthConsoleCredentials(TrinoCredentials):
     user: Optional[str] = None
     client_tags: Optional[List[str]] = None
     roles: Optional[Dict[str, str]] = None
-    cert: Optional[str] = None
+    cert: Optional[Union[str, bool]] = None
     http_headers: Optional[Dict[str, str]] = None
     session_properties: Dict[str, Any] = field(default_factory=dict)
     prepared_statements_enabled: bool = PREPARED_STATEMENTS_ENABLED_DEFAULT
diff --git a/tests/unit/test_adapter.py b/tests/unit/test_adapter.py
index d3f2de58..40c5578a 100644
--- a/tests/unit/test_adapter.py
+++ b/tests/unit/test_adapter.py
@@ -229,7 +229,7 @@ def test_none_authentication_without_http_scheme(self):
                 "method": "none",
                 "schema": "dbt_test_schema",
                 "user": "trino_user",
-                "cert": "/path/to/cert",
+                "cert": True,
                 "client_tags": ["dev", "without_http_scheme"],
                 "http_headers": {"X-Trino-Client-Info": "dbt-trino"},
                 "session_properties": {
@@ -243,7 +243,7 @@ def test_none_authentication_without_http_scheme(self):
         self.assert_default_connection_credentials(credentials)
         self.assertIsInstance(credentials, TrinoNoneCredentials)
         self.assertEqual(credentials.http_scheme, HttpScheme.HTTP)
-        self.assertEqual(credentials.cert, "/path/to/cert")
+        self.assertEqual(credentials.cert, True)
         self.assertEqual(credentials.client_tags, ["dev", "without_http_scheme"])
         self.assertEqual(credentials.timezone, "UTC")
 
@@ -261,7 +261,7 @@ def test_ldap_authentication(self):
                     "user": "trino_user",
                     "impersonation_user": "impersonated_user" if is_impersonation else None,
                     "password": "trino_password",
-                    "cert": "/path/to/cert",
+                    "cert": False,
                     "client_tags": ["dev", "ldap"],
                     "http_headers": {"X-Trino-Client-Info": "dbt-trino"},
                     "session_properties": {
@@ -276,7 +276,7 @@ def test_ldap_authentication(self):
             self.assertIsInstance(credentials, TrinoLdapCredentials)
             self.assert_default_connection_credentials(credentials)
             self.assertEqual(credentials.http_scheme, HttpScheme.HTTPS)
-            self.assertEqual(credentials.cert, "/path/to/cert")
+            self.assertEqual(credentials.cert, False)
             self.assertEqual(connection.handle.handle.user, expected_user)
             self.assertEqual(credentials.client_tags, ["dev", "ldap"])
             self.assertEqual(credentials.timezone, "UTC")