diff --git a/actix-http/Cargo.toml b/actix-http/Cargo.toml
index 6216af3d1..5c5a0cc86 100644
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@@ -56,7 +56,7 @@ derive_more = "0.99.5"
 encoding_rs = "0.8"
 futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 futures-util = { version = "0.3.7", default-features = false, features = ["alloc", "sink"] }
-h2 = "0.3.1"
+h2 = "=0.3.7"
 http = "0.2.5"
 httparse = "1.5.1"
 httpdate = "1.0.1"
diff --git a/awc/Cargo.toml b/awc/Cargo.toml
index 836241d46..cdbd0b6aa 100644
--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@@ -72,7 +72,7 @@ cfg-if = "1"
 derive_more = "0.99.5"
 futures-core = { version = "0.3.7", default-features = false }
 futures-util = { version = "0.3.7", default-features = false }
-h2 = "0.3"
+h2 = "=0.3.7"
 http = "0.2.5"
 itoa = "0.4"
 log =" 0.4"