diff --git a/contracts/governance-token/src/lib.rs b/contracts/governance-token/src/lib.rs
index b848179..cd9649b 100644
--- a/contracts/governance-token/src/lib.rs
+++ b/contracts/governance-token/src/lib.rs
@@ -407,6 +407,10 @@ impl GovernanceTokenContract {
             panic!("unauthorized");
         }
 
+        if amount <= 0 {
+            panic!("invalid amount");
+        }
+
         let current_supply: i128 = env
             .storage()
             .instance()
diff --git a/contracts/governance-token/src/test.rs b/contracts/governance-token/src/test.rs
index 1d40ae2..959c168 100644
--- a/contracts/governance-token/src/test.rs
+++ b/contracts/governance-token/src/test.rs
@@ -229,3 +229,23 @@ fn test_mint_supply_overflow_panics() {
     c.mint(&admin, &user, &MAX_SUPPLY);
     c.mint(&admin, &user, &i128::MAX);
 }
+
+#[test]
+#[should_panic(expected = "invalid amount")]
+fn test_mint_zero_amount_rejected() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (c, admin) = setup(&env);
+    let user = Address::generate(&env);
+    c.mint(&admin, &user, &0i128);
+}
+
+#[test]
+#[should_panic(expected = "invalid amount")]
+fn test_mint_negative_amount_rejected() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (c, admin) = setup(&env);
+    let user = Address::generate(&env);
+    c.mint(&admin, &user, &-1i128);
+}
diff --git a/contracts/governance-token/test_snapshots/test/test_mint_negative_amount_rejected.1.json b/contracts/governance-token/test_snapshots/test/test_mint_negative_amount_rejected.1.json
new file mode 100644
index 0000000..dfead14
--- /dev/null
+++ b/contracts/governance-token/test_snapshots/test/test_mint_negative_amount_rejected.1.json
@@ -0,0 +1,208 @@
+{
+  "generators": {
+    "address": 3,
+    "nonce": 0
+  },
+  "auth": [
+    [],
+    [
+      [
+        "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+        {
+          "function": {
+            "contract_fn": {
+              "contract_address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+              "function_name": "initialize",
+              "args": [
+                {
+                  "address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM"
+                }
+              ]
+            }
+          },
+          "sub_invocations": []
+        }
+      ]
+    ],
+    []
+  ],
+  "ledger": {
+    "protocol_version": 22,
+    "sequence_number": 0,
+    "timestamp": 0,
+    "network_id": "0000000000000000000000000000000000000000000000000000000000000000",
+    "base_reserve": 0,
+    "min_persistent_entry_ttl": 4096,
+    "min_temp_entry_ttl": 16,
+    "max_entry_ttl": 6312000,
+    "ledger_entries": [
+      [
+        {
+          "contract_data": {
+            "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+            "key": {
+              "ledger_key_nonce": {
+                "nonce": 801925984706572462
+              }
+            },
+            "durability": "temporary"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_data": {
+                "ext": "v0",
+                "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+                "key": {
+                  "ledger_key_nonce": {
+                    "nonce": 801925984706572462
+                  }
+                },
+                "durability": "temporary",
+                "val": "void"
+              }
+            },
+            "ext": "v0"
+          },
+          6311999
+        ]
+      ],
+      [
+        {
+          "contract_data": {
+            "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+            "key": "ledger_key_contract_instance",
+            "durability": "persistent"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_data": {
+                "ext": "v0",
+                "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+                "key": "ledger_key_contract_instance",
+                "durability": "persistent",
+                "val": {
+                  "contract_instance": {
+                    "executable": {
+                      "wasm": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+                    },
+                    "storage": [
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "Admin"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM"
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "MaxSupply"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "i128": {
+                            "hi": 0,
+                            "lo": 1000000000000
+                          }
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "Metadata"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "map": [
+                            {
+                              "key": {
+                                "symbol": "decimals"
+                              },
+                              "val": {
+                                "u32": 7
+                              }
+                            },
+                            {
+                              "key": {
+                                "symbol": "name"
+                              },
+                              "val": {
+                                "string": "PulsarTrack Governance"
+                              }
+                            },
+                            {
+                              "key": {
+                                "symbol": "symbol"
+                              },
+                              "val": {
+                                "string": "PULSAR"
+                              }
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "TotalSupply"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "i128": {
+                            "hi": 0,
+                            "lo": 0
+                          }
+                        }
+                      }
+                    ]
+                  }
+                }
+              }
+            },
+            "ext": "v0"
+          },
+          86400
+        ]
+      ],
+      [
+        {
+          "contract_code": {
+            "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_code": {
+                "ext": "v0",
+                "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+                "code": ""
+              }
+            },
+            "ext": "v0"
+          },
+          86400
+        ]
+      ]
+    ]
+  },
+  "events": []
+}
\ No newline at end of file
diff --git a/contracts/governance-token/test_snapshots/test/test_mint_zero_amount_rejected.1.json b/contracts/governance-token/test_snapshots/test/test_mint_zero_amount_rejected.1.json
new file mode 100644
index 0000000..dfead14
--- /dev/null
+++ b/contracts/governance-token/test_snapshots/test/test_mint_zero_amount_rejected.1.json
@@ -0,0 +1,208 @@
+{
+  "generators": {
+    "address": 3,
+    "nonce": 0
+  },
+  "auth": [
+    [],
+    [
+      [
+        "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+        {
+          "function": {
+            "contract_fn": {
+              "contract_address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+              "function_name": "initialize",
+              "args": [
+                {
+                  "address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM"
+                }
+              ]
+            }
+          },
+          "sub_invocations": []
+        }
+      ]
+    ],
+    []
+  ],
+  "ledger": {
+    "protocol_version": 22,
+    "sequence_number": 0,
+    "timestamp": 0,
+    "network_id": "0000000000000000000000000000000000000000000000000000000000000000",
+    "base_reserve": 0,
+    "min_persistent_entry_ttl": 4096,
+    "min_temp_entry_ttl": 16,
+    "max_entry_ttl": 6312000,
+    "ledger_entries": [
+      [
+        {
+          "contract_data": {
+            "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+            "key": {
+              "ledger_key_nonce": {
+                "nonce": 801925984706572462
+              }
+            },
+            "durability": "temporary"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_data": {
+                "ext": "v0",
+                "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM",
+                "key": {
+                  "ledger_key_nonce": {
+                    "nonce": 801925984706572462
+                  }
+                },
+                "durability": "temporary",
+                "val": "void"
+              }
+            },
+            "ext": "v0"
+          },
+          6311999
+        ]
+      ],
+      [
+        {
+          "contract_data": {
+            "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+            "key": "ledger_key_contract_instance",
+            "durability": "persistent"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_data": {
+                "ext": "v0",
+                "contract": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4",
+                "key": "ledger_key_contract_instance",
+                "durability": "persistent",
+                "val": {
+                  "contract_instance": {
+                    "executable": {
+                      "wasm": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+                    },
+                    "storage": [
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "Admin"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "address": "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD2KM"
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "MaxSupply"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "i128": {
+                            "hi": 0,
+                            "lo": 1000000000000
+                          }
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "Metadata"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "map": [
+                            {
+                              "key": {
+                                "symbol": "decimals"
+                              },
+                              "val": {
+                                "u32": 7
+                              }
+                            },
+                            {
+                              "key": {
+                                "symbol": "name"
+                              },
+                              "val": {
+                                "string": "PulsarTrack Governance"
+                              }
+                            },
+                            {
+                              "key": {
+                                "symbol": "symbol"
+                              },
+                              "val": {
+                                "string": "PULSAR"
+                              }
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "key": {
+                          "vec": [
+                            {
+                              "symbol": "TotalSupply"
+                            }
+                          ]
+                        },
+                        "val": {
+                          "i128": {
+                            "hi": 0,
+                            "lo": 0
+                          }
+                        }
+                      }
+                    ]
+                  }
+                }
+              }
+            },
+            "ext": "v0"
+          },
+          86400
+        ]
+      ],
+      [
+        {
+          "contract_code": {
+            "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+          }
+        },
+        [
+          {
+            "last_modified_ledger_seq": 0,
+            "data": {
+              "contract_code": {
+                "ext": "v0",
+                "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+                "code": ""
+              }
+            },
+            "ext": "v0"
+          },
+          86400
+        ]
+      ]
+    ]
+  },
+  "events": []
+}
\ No newline at end of file