diff --git a/bindings-generator/Cargo.toml b/bindings-generator/Cargo.toml
index 671e45f22..6ea0d182d 100644
--- a/bindings-generator/Cargo.toml
+++ b/bindings-generator/Cargo.toml
@@ -23,6 +23,6 @@ proc-macro2 = "1"
 quote = "1"
 regex = { version = "1.5.5", default-features = false, features = ["std", "unicode-perl"] } # for security: https://blog.rust-lang.org/2022/03/08/cve-2022-24713.html
 roxmltree = "0.19"
-syn = { version = "1", features = ["full", "extra-traits", "visit"] }
+syn = { version = "1.0.84", features = ["full", "extra-traits", "visit"] }
 unindent = "0.2.0"
 which = { optional = true, version = "5" }
diff --git a/gdnative-derive/Cargo.toml b/gdnative-derive/Cargo.toml
index 4a09f6d87..9bef0d5a2 100644
--- a/gdnative-derive/Cargo.toml
+++ b/gdnative-derive/Cargo.toml
@@ -15,7 +15,7 @@ rust-version = "1.70"
 proc-macro = true
 
 [dependencies]
-syn = { version = "1", features = ["full", "extra-traits", "visit"] }
+syn = { version = "1.0.84", features = ["full", "extra-traits", "visit"] }
 quote = "1"
 proc-macro2 = "1"
 proc-macro-crate = "2"
diff --git a/impl/proc-macros/Cargo.toml b/impl/proc-macros/Cargo.toml
index 2c0970601..307095d0f 100644
--- a/impl/proc-macros/Cargo.toml
+++ b/impl/proc-macros/Cargo.toml
@@ -14,6 +14,6 @@ rust-version = "1.70"
 proc-macro = true
 
 [dependencies]
-syn = { version = "1", features = ["full", "extra-traits", "visit", "visit-mut"] }
+syn = { version = "1.0.84", features = ["full", "extra-traits", "visit", "visit-mut"] }
 quote = "1"
 proc-macro2 = "1"