diff --git a/tower/api/service.py b/tower/api/service.py
index e9d2faf620c3e0a2ec17440c941eef998dd4c435..3403b4bd782246ca60ffbdd232855e9690f1b543 100644
--- a/tower/api/service.py
+++ b/tower/api/service.py
@@ -34,7 +34,7 @@ class ServiceAPI(API):
             if not os.path.exists(path):
                 continue
             with open(path) as f:
-                descr = yaml.load(f, OrderedDictYAMLLoader)
+                descr = yaml.full_load(f, OrderedDictYAMLLoader)
                 if not descr:
                     continue
                 if "services" not in descr or not descr["services"]:
diff --git a/tower/migrations/024_change_session_timeout.py b/tower/migrations/024_change_session_timeout.py
index 2c7258024ce53a94991b82b258066b0856f50560..a02b4912b8c614986f9caca77b9a714a244d7af5 100644
--- a/tower/migrations/024_change_session_timeout.py
+++ b/tower/migrations/024_change_session_timeout.py
@@ -71,7 +71,7 @@ def migrate(migrator):
         is_default = BooleanField(default=False)
 
     for env in Environment.select():
-        config = yaml.load(env.service_config)
+        config = yaml.full_load(env.service_config)
         if "session_ttl" in config[None]["login"]:
             if "d" not in str(config[None]["login"]["session_ttl"]):
                 config[None]["login"]["session_ttl"] = str(config[None]["login"]["session_ttl"]) + "d"
diff --git a/tower/migrations/030_move_db_settings.py b/tower/migrations/030_move_db_settings.py
index 0472350301e9ef5a1485d18d8b9990ca327e87ed..eba7aedbc6c585866c60bf10b1610b81acef8e61 100644
--- a/tower/migrations/030_move_db_settings.py
+++ b/tower/migrations/030_move_db_settings.py
@@ -73,7 +73,7 @@ def migrate(migrator):
     if len(Environment.select()) != 0:
         for env in Environment.select():
             print("Migrating %s" % env.name)
-            config = yaml.load(env.service_config)
+            config = yaml.full_load(env.service_config)
             if not config:
                 continue
             config[None]["influxdb"] = {
diff --git a/tower/migrations/032_add_default_roles.py b/tower/migrations/032_add_default_roles.py
index d23f3e6a736c43e28f25f7fbe0a9ba1099e04601..733dc16bbeb0b709d8099b3c4e21f195c6075d1f 100644
--- a/tower/migrations/032_add_default_roles.py
+++ b/tower/migrations/032_add_default_roles.py
@@ -152,7 +152,7 @@ def migrate(migrator):
                     loglevel="info"
                 ).save()
             # Adjust service config
-            config = yaml.load(env.service_config) or {None: {}}
+            config = yaml.full_load(env.service_config) or {None: {}}
             config[None]["telegraf"] = {
                 "telegraf_output_plugin": "influx"
             }
diff --git a/tower/migrations/033_remove_custom.py b/tower/migrations/033_remove_custom.py
index e275f2487a8c7242e53dd07d8c9812cd67a74853..5d0768caea22b5998ca31dbf48d0a8efcff610c8 100644
--- a/tower/migrations/033_remove_custom.py
+++ b/tower/migrations/033_remove_custom.py
@@ -35,7 +35,7 @@ def migrate(migrator):
     if len(Environment.select()) != 0:
         for env in Environment.select():
             print("Migrating %s" % env.name)
-            config = yaml.load(env.service_config)
+            config = yaml.full_load(env.service_config)
             if not config:
                 continue
             if env.custom_repo:
diff --git a/tower/migrations/034_service_config.py b/tower/migrations/034_service_config.py
index 29e4a115292e1e4d66aee31b05efe1113b50f856..2b256343399ed520d691cab3646d5cec3f48dd57 100644
--- a/tower/migrations/034_service_config.py
+++ b/tower/migrations/034_service_config.py
@@ -58,7 +58,7 @@ def migrate(migrator):
             print("Migrating %s" % env.name)
             # remove nodes without services
 
-            config = yaml.load(env.service_config)
+            config = yaml.full_load(env.service_config)
             if not config:
                 continue
             # move settings from environment to service
diff --git a/tower/models/environment.py b/tower/models/environment.py
index 8752055947888b32038b1e277cec2ea3a743ef97..52458b34ce253d96740238cb9642bac42f4bc184 100644
--- a/tower/models/environment.py
+++ b/tower/models/environment.py
@@ -415,7 +415,7 @@ class Environment(Model):
             if not os.path.exists(path):
                 continue
             with open(path) as f:
-                descr = yaml.load(f)
+                descr = yaml.full_load(f)
             if not descr:
                 continue
             if "services" not in descr or not descr["services"]:
diff --git a/tower/models/service.py b/tower/models/service.py
index b422438d1c94e6dbd492263b41891a159ccb20da..5aca41d9dc1fbdcd9a49c8b40ac549b406e15672 100644
--- a/tower/models/service.py
+++ b/tower/models/service.py
@@ -45,7 +45,7 @@ class Service(Model):
                 if not os.path.exists(path):
                     continue
                 with open(path) as f:
-                    descr = yaml.load(f)
+                    descr = yaml.full_load(f)
                     if not descr:
                         continue
                     for srv in sorted(descr["services"]):