diff --git a/go.mod b/go.mod
index 330de11..1b0a157 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module git.gammaspectra.live/git/go-away
 
-go 1.24
+go 1.22.12
 
 require (
 	codeberg.org/meta/gzipped/v2 v2.0.0-20231111234332-aa70c3194756
@@ -15,14 +15,14 @@ require (
 )
 
 require (
-	cel.dev/expr v0.22.1 // indirect
+	cel.dev/expr v0.23.0 // indirect
 	github.com/antlr4-go/antlr/v4 v4.13.1 // indirect
 	github.com/itchyny/timefmt-go v0.1.6 // indirect
 	github.com/kevinpollet/nego v0.0.0-20211010160919-a65cd48cee43 // indirect
 	github.com/stoewer/go-strcase v1.3.0 // indirect
-	golang.org/x/crypto v0.36.0 // indirect
-	golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250324211829-b45e905df463 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463 // indirect
+	golang.org/x/crypto v0.33.0 // indirect
+	golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240826202546-f6391c0de4c7 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 )
diff --git a/go.sum b/go.sum
index c1c03e0..72c168e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-cel.dev/expr v0.22.1 h1:xoFEsNh972Yzey8N9TCPx2nDvMN7TMhQEzxLuj/iRrI=
-cel.dev/expr v0.22.1/go.mod h1:MrpN08Q+lEBs+bGYdLxxHkZoUSsCp0nSKTs0nTymJgw=
+cel.dev/expr v0.23.0 h1:wUb94w6OYQS4uXraxo9U+wUAs9jT47Xvl4iPgAwM2ss=
+cel.dev/expr v0.23.0/go.mod h1:hLPLo1W4QUmuYdA72RBX06QTs6MXw941piREPl3Yfiw=
 codeberg.org/meta/gzipped/v2 v2.0.0-20231111234332-aa70c3194756 h1:bDqEUEYt4UJy8mfLCZeJuXx+xNJvdqTbkE4Ci11NQYU=
 codeberg.org/meta/gzipped/v2 v2.0.0-20231111234332-aa70c3194756/go.mod h1:aJ/ghJW7viYfwZ6OizDst+uJgbb6r/Hvoqhmi1OPTTw=
 github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7XdTA=
@@ -42,16 +42,16 @@ github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZ
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
 github.com/yl2chen/cidranger v1.0.2 h1:lbOWZVCG1tCRX4u24kuM1Tb4nHqWkDxwLdoS+SevawU=
 github.com/yl2chen/cidranger v1.0.2/go.mod h1:9U1yz7WPYDwf0vpNWFaeRh0bjwz5RVgRy/9UEQfHl0g=
-golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
-golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
-golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 h1:nDVHiLt8aIbd/VzvPWN6kSOPE7+F/fNFDSXLVYkE/Iw=
-golang.org/x/exp v0.0.0-20250305212735-054e65f0b394/go.mod h1:sIifuuw/Yco/y6yb6+bDNfyeQ/MdPUy/hKEMYQV17cM=
-golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
-golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
-google.golang.org/genproto/googleapis/api v0.0.0-20250324211829-b45e905df463 h1:hE3bRWtU6uceqlh4fhrSnUyjKHMKB9KrTLLG+bc0ddM=
-google.golang.org/genproto/googleapis/api v0.0.0-20250324211829-b45e905df463/go.mod h1:U90ffi8eUL9MwPcrJylN5+Mk2v3vuPDptd5yyNUiRR8=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463 h1:e0AIkUUhxyBKh6ssZNrAMeqhA7RKUj42346d1y02i2g=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
+golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
+golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
+golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac h1:l5+whBCLH3iH2ZNHYLbAe58bo7yrN4mVcnkHDYz5vvs=
+golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac/go.mod h1:hH+7mtFmImwwcMvScyxUhjuVHR3HGaDPMn9rMSUUbxo=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
+google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7 h1:YcyjlL1PRr2Q17/I0dPk2JmYS5CDXfcdb2Z3YRioEbw=
+google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7/go.mod h1:OCdP9MfskevB/rbYvHTsXTtKC+3bHWajPdoKgjcYkfo=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240826202546-f6391c0de4c7 h1:2035KHhUv+EpyB+hWgJnaWKJOdX1E95w2S8Rr4uWKTs=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240826202546-f6391c0de4c7/go.mod h1:UqMtugtsSgubUsoxbuAoiCXvqvErP7Gf0so0mK9tHxU=
 google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
 google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
diff --git a/lib/challenge.go b/lib/challenge.go
index a62629e..ab1b5c6 100644
--- a/lib/challenge.go
+++ b/lib/challenge.go
@@ -106,21 +106,27 @@ func (state *State) VerifyChallengeToken(name string, expectedKey []byte, w http
 	cookie, err := r.Cookie(CookiePrefix + name)
 	if err != nil {
 		// fallback: fetch cookie from response
-		if setCookies, ok := w.Header()["Set-Cookie"]; ok {
-			for _, setCookie := range setCookies {
-				newCookie, err := http.ParseSetCookie(setCookie)
-				if err != nil {
-					continue
-				}
-				// keep processing to find last set cookie
-				if newCookie.Name == name {
-					cookie = newCookie
+		// TODO: implemented in go1.23, port back
+		/*
+			if setCookies, ok := w.Header()["Set-Cookie"]; ok {
+				for _, setCookie := range setCookies {
+					newCookie, err := http.ParseSetCookie(setCookie)
+					if err != nil {
+						continue
+					}
+					// keep processing to find last set cookie
+					if newCookie.Name == name {
+						cookie = newCookie
+					}
 				}
 			}
-		}
+		*/
+	}
+	if err != nil {
+		return false, err
 	}
 	if cookie == nil {
-		return false, err
+		return false, http.ErrNoCookie
 	}
 
 	token, err := jwt.ParseSigned(cookie.Value, []jose.SignatureAlgorithm{jose.EdDSA})