diff --git a/cocoa-foundation/Cargo.toml b/cocoa-foundation/Cargo.toml
index c2c9c5c5..a8d3b999 100644
--- a/cocoa-foundation/Cargo.toml
+++ b/cocoa-foundation/Cargo.toml
@@ -12,9 +12,9 @@ license = "MIT OR Apache-2.0"
 default-target = "x86_64-apple-darwin"
 
 [dependencies]
-block2 = "=0.2.0-alpha.8"
+block2 = "0.2.0"
 bitflags = "1.0"
 libc = "0.2"
 core-foundation = { path = "../core-foundation", version = "0.9" }
 core-graphics-types = { path = "../core-graphics-types", version = "0.1" }
-objc2 = "=0.3.0-beta.5"
+objc2 = "0.4.0"
diff --git a/cocoa/Cargo.toml b/cocoa/Cargo.toml
index 4986c635..eae77b57 100644
--- a/cocoa/Cargo.toml
+++ b/cocoa/Cargo.toml
@@ -12,11 +12,11 @@ license = "MIT OR Apache-2.0"
 default-target = "x86_64-apple-darwin"
 
 [dependencies]
-block2 = "=0.2.0-alpha.8"
+block2 = "0.2.0"
 bitflags = "1.0"
 libc = "0.2"
 cocoa-foundation = { path = "../cocoa-foundation", version = "0.1" }
 core-foundation = { path = "../core-foundation", version = "0.9" }
 core-graphics = { path = "../core-graphics", version = "0.23" }
 foreign-types = "0.5"
-objc2 = "=0.3.0-beta.5"
+objc2 = "0.4.0"
diff --git a/core-foundation-sys/Cargo.toml b/core-foundation-sys/Cargo.toml
index 7b481bf9..5740ec89 100644
--- a/core-foundation-sys/Cargo.toml
+++ b/core-foundation-sys/Cargo.toml
@@ -8,7 +8,7 @@ authors = ["The Servo Project Developers"]
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-objc2 = "=0.3.0-beta.5"
+objc2 = "0.4.0"
 
 [features]
 mac_os_10_7_support = [] # backwards compatibility
diff --git a/core-graphics-types/Cargo.toml b/core-graphics-types/Cargo.toml
index 043aa63a..dc91244c 100644
--- a/core-graphics-types/Cargo.toml
+++ b/core-graphics-types/Cargo.toml
@@ -11,7 +11,7 @@ license = "MIT OR Apache-2.0"
 bitflags = "1.0"
 core-foundation = { path = "../core-foundation", version = "0.9" }
 libc = "0.2"
-objc2 = "=0.3.0-beta.5"
+objc2 = "0.4.0"
 
 [package.metadata.docs.rs]
 default-target = "x86_64-apple-darwin"
diff --git a/core-graphics/Cargo.toml b/core-graphics/Cargo.toml
index 763a62f5..5def1b61 100644
--- a/core-graphics/Cargo.toml
+++ b/core-graphics/Cargo.toml
@@ -18,7 +18,7 @@ core-foundation = { path = "../core-foundation", version = "0.9" }
 core-graphics-types = { path = "../core-graphics-types", version = "0.1" }
 foreign-types = "0.5.0"
 libc = "0.2"
-objc2 = "=0.3.0-beta.5"
+objc2 = "0.4.0"
 
 [package.metadata.docs.rs]
 default-target = "x86_64-apple-darwin"