diff --git a/.github/workflows/build_cmake.yml b/.github/workflows/build_cmake.yml
index 6665ca55add..daddaccea58 100644
--- a/.github/workflows/build_cmake.yml
+++ b/.github/workflows/build_cmake.yml
@@ -7,7 +7,7 @@ on:
       - 'doc/**'
 
 env:
-  QT_VERSION: 6.8.2
+  QT_VERSION: 6.8.3
   MACOS_DEPLOYMENT_TARGET: 11.0
   CLANG_VERSION: 19.1.6
   ELFUTILS_VERSION: 0.175
diff --git a/coin/instructions/common_environment.yaml b/coin/instructions/common_environment.yaml
index deceddb7a4a..add245a9730 100644
--- a/coin/instructions/common_environment.yaml
+++ b/coin/instructions/common_environment.yaml
@@ -7,7 +7,7 @@ instructions:
         instructions:
           - type: EnvironmentVariable
             variableName: QTC_QT_BASE_URL
-            variableValue: "https://ci-files02-hki.ci.qt.io/packages/jenkins/qt/6.8.2/release_content/"
+            variableValue: "https://ci-files02-hki.ci.qt.io/packages/jenkins/qt/6.8.3/release_content/"
           - type: EnvironmentVariable
             variableName: MACOSX_DEPLOYMENT_TARGET
             variableValue: 12.0