diff --git a/changeset/Cargo.toml b/changeset/Cargo.toml
index bf7b094..0e02630 100644
--- a/changeset/Cargo.toml
+++ b/changeset/Cargo.toml
@@ -2,6 +2,8 @@
 name = "changeset"
 version = "0.1.0"
 edition = "2021"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/changeset/src/lib.rs b/changeset/src/lib.rs
index 203c4fb..40a0666 100644
--- a/changeset/src/lib.rs
+++ b/changeset/src/lib.rs
@@ -1,3 +1,15 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of the Luminescent Dreams Tools.
+
+Luminescent Dreams Tools is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+Luminescent Dreams Tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
+*/
+
 use std::{
     collections::{HashMap, HashSet},
     hash::Hash,
diff --git a/coordinates/Cargo.toml b/coordinates/Cargo.toml
index f93e5a2..0a40259 100644
--- a/coordinates/Cargo.toml
+++ b/coordinates/Cargo.toml
@@ -2,6 +2,8 @@
 name = "coordinates"
 version = "0.1.0"
 edition = "2021"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/emseries/Cargo.toml b/emseries/Cargo.toml
index 880f8d9..c9971fb 100644
--- a/emseries/Cargo.toml
+++ b/emseries/Cargo.toml
@@ -3,7 +3,8 @@ name = "emseries"
 version = "0.5.1"
 authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 description = "an Embedded Time Series database"
-license = "BSD-3-Clause"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 documentation = "https://docs.rs/emseries"
 homepage = "https://github.com/luminescent-dreams/emseries"
 repository = "https://github.com/luminescent-dreams/emseries"
diff --git a/fluent-ergonomics/Cargo.toml b/fluent-ergonomics/Cargo.toml
index 5d4a0e3..3415160 100644
--- a/fluent-ergonomics/Cargo.toml
+++ b/fluent-ergonomics/Cargo.toml
@@ -4,7 +4,8 @@ authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 edition = "2018"
 version = "0.2.0"
 description = "An ergonomics wrapper around Fluent-RS"
-license = "AGPL-3.0-or-later"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 homepage = "https://github.com/luminescent-dreams/fluent-ergonomics"
 repository = "https://github.com/luminescent-dreams/fluent-ergonomics"
 categories = ["internationalization"]
diff --git a/hex-grid/Cargo.toml b/hex-grid/Cargo.toml
index dae2b5f..e6dd1a9 100644
--- a/hex-grid/Cargo.toml
+++ b/hex-grid/Cargo.toml
@@ -2,6 +2,8 @@
 name = "hex-grid"
 version = "0.1.0"
 edition = "2021"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/ifc/Cargo.toml b/ifc/Cargo.toml
index f9cba62..9c3d902 100644
--- a/ifc/Cargo.toml
+++ b/ifc/Cargo.toml
@@ -6,6 +6,8 @@ authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 edition = "2018"
 keywords = ["date", "time", "calendar"]
 categories = ["date-and-time"]
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 [dependencies]
 chrono = "0.4"