diff --git a/.circleci/config.yml b/.circleci/config.yml
index 20099ac9..78143a1f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -39,11 +39,11 @@ version: 2
 jobs:
   build-go1.10:
     docker:
-      - image: circleci/golang:1.10.2-stretch-browsers
+      - image: circleci/golang:1.10.3-stretch-browsers
     <<: *defaults
   build-go1.9:
     docker:
-      - image: circleci/golang:1.9.6-stretch-browsers
+      - image: circleci/golang:1.9.7-stretch-browsers
     <<: *defaults
 workflows:
   version: 2
diff --git a/.travis.yml b/.travis.yml
index 51bba51a..a56ab106 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,8 +8,8 @@ addons:
 language: go
 
 go:
-  - "1.9.6"
-  - "1.10.2"
+  - "1.9.7"
+  - "1.10.3"
 
 # first part of the GOARCH workaround
 # setting the GOARCH directly doesn't work, since the value will be overwritten later
diff --git a/appveyor.yml b/appveyor.yml
index b7bb0305..4019ad2b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,8 +14,8 @@ clone_folder: c:\gopath\src\github.com\lucas-clemente\quic-go
 
 install:
   - rmdir c:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.10.2.windows-amd64.zip
-  - 7z x go1.10.2.windows-amd64.zip -y -oC:\ > NUL
+  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.10.3.windows-amd64.zip
+  - 7z x go1.10.3.windows-amd64.zip -y -oC:\ > NUL
   - set PATH=%PATH%;%GOPATH%\bin\windows_%GOARCH%;%GOPATH%\bin
   - echo %PATH%
   - echo %GOPATH%