diff --git a/.github/workflows/cross-compile.yml b/.github/workflows/cross-compile.yml
index 18cc14127..a7ac04ab4 100644
--- a/.github/workflows/cross-compile.yml
+++ b/.github/workflows/cross-compile.yml
@@ -4,7 +4,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go: [ "1.15.x", "1.16.x", "1.17.0-beta1" ]
+        go: [ "1.15.x", "1.16.x", "1.17.0-rc1" ]
     runs-on: ubuntu-latest
     name: "Cross Compilation (Go ${{matrix.go}})"
     steps:
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index fc0adf92c..0be8795d5 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -5,7 +5,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go: [ "1.15.x", "1.16.x", "1.17.0-beta1" ]
+        go: [ "1.15.x", "1.16.x", "1.17.0-rc1" ]
     runs-on: ubuntu-latest
     env:
       DEBUG: false # set this to true to export qlogs and save them as artifacts
diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index 78a11c42c..6b7822f89 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -7,7 +7,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu", "windows", "macos" ]
-        go: [ "1.15.x", "1.16.x", "1.17.0-beta1" ]
+        go: [ "1.15.x", "1.16.x", "1.17.0-rc1" ]
     runs-on: ${{ matrix.os }}-latest
     name: Unit tests (${{ matrix.os}}, Go ${{ matrix.go }})
     steps:
diff --git a/go.mod b/go.mod
index ef48a2ff8..879e8161c 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/marten-seemann/qpack v0.2.1
 	github.com/marten-seemann/qtls-go1-15 v0.1.4
 	github.com/marten-seemann/qtls-go1-16 v0.1.3
-	github.com/marten-seemann/qtls-go1-17 v0.1.0-beta.1.2
+	github.com/marten-seemann/qtls-go1-17 v0.1.0-rc.1
 	github.com/onsi/ginkgo v1.16.4
 	github.com/onsi/gomega v1.13.0
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
diff --git a/go.sum b/go.sum
index c965eaed2..d54679f8f 100644
--- a/go.sum
+++ b/go.sum
@@ -85,8 +85,8 @@ github.com/marten-seemann/qtls-go1-15 v0.1.4 h1:RehYMOyRW8hPVEja1KBVsFVNSm35Jj9M
 github.com/marten-seemann/qtls-go1-15 v0.1.4/go.mod h1:GyFwywLKkRt+6mfU99csTEY1joMZz5vmB1WNZH3P81I=
 github.com/marten-seemann/qtls-go1-16 v0.1.3 h1:XEZ1xGorVy9u+lJq+WXNE+hiqRYLNvJGYmwfwKQN2gU=
 github.com/marten-seemann/qtls-go1-16 v0.1.3/go.mod h1:gNpI2Ol+lRS3WwSOtIUUtRwZEQMXjYK+dQSBFbethAk=
-github.com/marten-seemann/qtls-go1-17 v0.1.0-beta.1.2 h1:SficYjyOthSrliKI+EaFuXS6HqSsX3dkY9AqxAAjBjw=
-github.com/marten-seemann/qtls-go1-17 v0.1.0-beta.1.2/go.mod h1:fz4HIxByo+LlWcreM4CZOYNuz3taBQ8rN2X6FqvaWo8=
+github.com/marten-seemann/qtls-go1-17 v0.1.0-rc.1 h1:/rpmWuGvceLwwWuaKPdjpR4JJEUH0tq64/I3hvzaNLM=
+github.com/marten-seemann/qtls-go1-17 v0.1.0-rc.1/go.mod h1:fz4HIxByo+LlWcreM4CZOYNuz3taBQ8rN2X6FqvaWo8=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=