diff --git a/envs/monkey_zoo/blackbox/test_configurations/utils.py b/envs/monkey_zoo/blackbox/test_configurations/utils.py
index d5bad8afc..c1b6b54f8 100644
--- a/envs/monkey_zoo/blackbox/test_configurations/utils.py
+++ b/envs/monkey_zoo/blackbox/test_configurations/utils.py
@@ -9,70 +9,78 @@ def add_exploiters(
     vulnerability: Sequence[PluginConfiguration] = [],
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.exploitation.brute_force = brute_force
-    agent_configuration.propagation.exploitation.vulnerability = vulnerability
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.exploitation.brute_force = brute_force
+    agent_configuration_copy.propagation.exploitation.vulnerability = vulnerability
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def add_fingerprinters(
     agent_configuration: AgentConfiguration, fingerprinters: Sequence[PluginConfiguration]
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.network_scan.fingerprinters = fingerprinters
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.network_scan.fingerprinters = fingerprinters
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def add_tcp_ports(
     agent_configuration: AgentConfiguration, tcp_ports: Sequence[int]
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.network_scan.tcp.ports = tuple(tcp_ports)
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.network_scan.tcp.ports = tuple(tcp_ports)
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def add_subnets(
     agent_configuration: AgentConfiguration, subnets: Sequence[str]
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.network_scan.targets.subnets = subnets
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.network_scan.targets.subnets = subnets
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def add_credential_collectors(
     agent_configuration: AgentConfiguration, credential_collectors: Sequence[PluginConfiguration]
 ) -> AgentConfiguration:
 
-    agent_configuration.credential_collectors = tuple(credential_collectors)
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.credential_collectors = tuple(credential_collectors)
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def add_http_ports(
     agent_configuration: AgentConfiguration, http_ports: Sequence[int]
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.exploitation.options.http_ports = http_ports
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.exploitation.options.http_ports = http_ports
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def set_keep_tunnel_open_time(
     agent_configuration: AgentConfiguration, keep_tunnel_open_time: int
 ) -> AgentConfiguration:
 
-    agent_configuration.keep_tunnel_open_time = keep_tunnel_open_time
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.keep_tunnel_open_time = keep_tunnel_open_time
 
-    return agent_configuration
+    return agent_configuration_copy
 
 
 def set_maximum_depth(
     agent_configuration: AgentConfiguration, maximum_depth: int
 ) -> AgentConfiguration:
 
-    agent_configuration.propagation.maximum_depth = maximum_depth
+    agent_configuration_copy = agent_configuration.copy()
+    agent_configuration_copy.propagation.maximum_depth = maximum_depth
 
-    return agent_configuration
+    return agent_configuration_copy