diff --git a/ruma-appservice-api/Cargo.toml b/ruma-appservice-api/Cargo.toml
index a768306f..7a8d12ca 100644
--- a/ruma-appservice-api/Cargo.toml
+++ b/ruma-appservice-api/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 
 [dependencies]
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events = { version = "=0.22.0-alpha.2", path = "../ruma-events" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma-client-api/Cargo.toml b/ruma-client-api/Cargo.toml
index 555dfb10..7b4b4408 100644
--- a/ruma-client-api/Cargo.toml
+++ b/ruma-client-api/Cargo.toml
@@ -23,7 +23,7 @@ js_int = { version = "0.2.0", features = ["serde"] }
 maplit = "1.0.2"
 percent-encoding = "2.1.0"
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events = { version = "=0.22.0-alpha.2", path = "../ruma-events" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma-client/Cargo.toml b/ruma-client/Cargo.toml
index 24530402..0fd098c8 100644
--- a/ruma-client/Cargo.toml
+++ b/ruma-client/Cargo.toml
@@ -24,7 +24,7 @@ hyper-tls = { version = "0.5.0", optional = true }
 hyper-rustls = { version = "0.22.1", optional = true, default-features = false }
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
 ruma-client-api = { version = "=0.10.0-alpha.2", path = "../ruma-client-api", features = ["client"] }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events = { version = "=0.22.0-alpha.2", path = "../ruma-events" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma-common/CHANGELOG.md b/ruma-common/CHANGELOG.md
index b2d53380..4168218c 100644
--- a/ruma-common/CHANGELOG.md
+++ b/ruma-common/CHANGELOG.md
@@ -1,11 +1,14 @@
 # [unreleased]
 
+# 0.4.0
+
 Breaking changes:
 
 * Use `ruma_identifiers::MxcUri` instead of `String` for `avatar_url` field in
   `directory::PublicRoomsChunk`
 * Use `ruma_identifiers::RoomId` instead of `String` for `room_id` field in
   `push::PushConditionRoomCtx`
+* Upgrade ruma-identifiers dependency to 0.19.0
 
 # 0.3.1
 
diff --git a/ruma-common/Cargo.toml b/ruma-common/Cargo.toml
index de1809c0..0065f826 100644
--- a/ruma-common/Cargo.toml
+++ b/ruma-common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruma-common"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["Jonas Platte <jplatte@posteo.de>"]
 description = "Common types for other ruma crates."
 homepage = "https://www.ruma.io/"
diff --git a/ruma-events/Cargo.toml b/ruma-events/Cargo.toml
index 45ca898f..03eae1bb 100644
--- a/ruma-events/Cargo.toml
+++ b/ruma-events/Cargo.toml
@@ -14,7 +14,7 @@ edition = "2018"
 [dependencies]
 criterion = { version = "0.3.3", optional = true }
 js_int = { version = "0.2.0", features = ["serde"] }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events-macros = { version = "=0.22.0-alpha.2", path = "../ruma-events-macros" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma-federation-api/Cargo.toml b/ruma-federation-api/Cargo.toml
index d9bba13b..a4b40355 100644
--- a/ruma-federation-api/Cargo.toml
+++ b/ruma-federation-api/Cargo.toml
@@ -17,7 +17,7 @@ version = "0.1.0-alpha.1"
 [dependencies]
 js_int = { version = "0.2.0", features = ["serde"] }
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events = { version = "=0.22.0-alpha.2", path = "../ruma-events" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma-identity-service-api/Cargo.toml b/ruma-identity-service-api/Cargo.toml
index 32689dca..b09763e9 100644
--- a/ruma-identity-service-api/Cargo.toml
+++ b/ruma-identity-service-api/Cargo.toml
@@ -12,7 +12,7 @@ edition = "2018"
 
 [dependencies]
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
 serde = { version = "1.0.118", features = ["derive"] }
diff --git a/ruma-push-gateway-api/Cargo.toml b/ruma-push-gateway-api/Cargo.toml
index 044856bf..159032db 100644
--- a/ruma-push-gateway-api/Cargo.toml
+++ b/ruma-push-gateway-api/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 [dependencies]
 js_int = { version = "0.2.0", features = ["serde"] }
 ruma-api = { version = "=0.17.0-alpha.2", path = "../ruma-api" }
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-events = { version = "0.22.0-alpha.1", path = "../ruma-events" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers" }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }
diff --git a/ruma/Cargo.toml b/ruma/Cargo.toml
index 1cd84117..877b306d 100644
--- a/ruma/Cargo.toml
+++ b/ruma/Cargo.toml
@@ -19,7 +19,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 assign = "1.1.1"
 js_int = "0.2.0"
 
-ruma-common = { version = "0.3.1", path = "../ruma-common" }
+ruma-common = { version = "0.4.0", path = "../ruma-common" }
 ruma-identifiers = { version = "0.19.0", path = "../ruma-identifiers", features = ["serde"] }
 ruma-serde = { version = "0.3.1", path = "../ruma-serde" }