diff --git a/biscuit-auth/Cargo.toml b/biscuit-auth/Cargo.toml
index 01a92e67..b98145e6 100644
--- a/biscuit-auth/Cargo.toml
+++ b/biscuit-auth/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "biscuit-auth"
-version = "5.0.0"
+version = "6.0.0-alpha.1"
 description = "an authorization token with decentralized verification and offline attenuation"
 authors = ["Geoffroy Couprie <contact@geoffroycouprie.com>"]
 edition = "2018"
@@ -43,8 +43,8 @@ serde = { version = "1.0.132", optional = true, features = ["derive"] }
 getrandom = { version = "0.1.16" }
 time = { version = "0.3.7", features = ["formatting", "parsing"] }
 uuid = { version = "1", optional = true }
-biscuit-parser = { version = "0.1.2", path = "../biscuit-parser" }
-biscuit-quote = { version = "0.2.2", optional = true, path = "../biscuit-quote" }
+biscuit-parser = { version = "0.2.0-alpha.1", path = "../biscuit-parser" }
+biscuit-quote = { version = "0.3.0-alpha.1", optional = true, path = "../biscuit-quote" }
 chrono = { version = "0.4.26", optional = true, default-features = false, features = [
   "serde",
 ] }
diff --git a/biscuit-capi/Cargo.toml b/biscuit-capi/Cargo.toml
index f849d272..0f324282 100644
--- a/biscuit-capi/Cargo.toml
+++ b/biscuit-capi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "biscuit-capi"
-version = "5.0.0"                                            # Should keep the same version as biscuit-auth
+version = "6.0.0-alpha.1"                                    # Should keep the same version as biscuit-auth
 description = "C API for Biscuit"
 authors = ["Geoffroy Couprie <contact@geoffroycouprie.com>"]
 edition = "2018"
@@ -10,7 +10,7 @@ homepage = "https://github.com/biscuit-auth/biscuit"
 repository = "https://github.com/biscuit-auth/biscuit-rust"
 
 [dependencies]
-biscuit-auth = { version = "5.0.0", path = "../biscuit-auth", features = [
+biscuit-auth = { version = "6.0.0-alpha.1", path = "../biscuit-auth", features = [
     "datalog-macro",
     "serde-error",
 ] }
diff --git a/biscuit-parser/Cargo.toml b/biscuit-parser/Cargo.toml
index 2192de03..cec7e247 100644
--- a/biscuit-parser/Cargo.toml
+++ b/biscuit-parser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "biscuit-parser"
-version = "0.1.2"
+version = "0.2.0-alpha.1"
 edition = "2021"
 authors = ["Clément Delafargue <clement@delafargue.name>", "Geoffroy Couprie <contact@geoffroycouprie.com>"]
 description = "Datalog parser used in the biscuit-auth and biscuit-quote crates"
diff --git a/biscuit-quote/Cargo.toml b/biscuit-quote/Cargo.toml
index 4bcce39f..ce866d68 100644
--- a/biscuit-quote/Cargo.toml
+++ b/biscuit-quote/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "biscuit-quote"
-version = "0.2.2"
+version = "0.3.0-alpha.1"
 edition = "2021"
 description = "macros for compile time datalog parsing for Biscuit authorization tokens"
 authors = ["Clément Delafargue <clement@delafargue.name>", "Geoffroy Couprie <contact@geoffroycouprie.com>"]
@@ -10,7 +10,7 @@ license = "Apache-2.0"
 proc-macro = true
 
 [dependencies]
-biscuit-parser = { path = "../biscuit-parser", features = ["datalog-macro"], version = "0.1.2" }
+biscuit-parser = { path = "../biscuit-parser", features = ["datalog-macro"], version = "0.2.0-alpha.1" }
 proc-macro2 = "1"
 quote = "1.0.14"
 syn = { version = "1.0.85", features = ["full", "extra-traits"] }