diff --git a/Package.resolved b/Package.resolved
index c9ffea01..acede374 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -104,8 +104,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-asn1.git",
       "state" : {
-        "revision" : "eb11d30c1de3b896f55aefdb3745dd5e7e1f319f",
-        "version" : "0.3.0"
+        "revision" : "ae33e5941bb88d88538d0a6b19ca0b01e6c76dcf",
+        "version" : "1.3.1"
       }
     },
     {
diff --git a/Package.swift b/Package.swift
index bcf7b6e1..76ebb869 100644
--- a/Package.swift
+++ b/Package.swift
@@ -98,7 +98,7 @@ let package = Package(
         .package(url: "https://github.com/vsanthanam/AnyAsyncSequence.git", from: "1.0.0"),
         .package(url: "https://github.com/apple/swift-atomics.git", from: "1.1.0"),
         // swift-asn1 wants swift 5.7+ past 0.4
-        .package(url: "https://github.com/apple/swift-asn1.git", .upToNextMinor(from: "0.3.0")),
+        .package(url: "https://github.com/apple/swift-asn1.git", .upToNextMinor(from: "1.3.1")),
         .package(url: "https://github.com/GigaBitcoin/secp256k1.swift.git", .upToNextMinor(from: "0.12.0")),
         .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.0.0"),
         .package(url: "https://github.com/pointfreeco/swift-snapshot-testing.git", from: "1.0.0"),