diff --git a/.gitlab/os-macos.yml b/.gitlab/os-macos.yml
index c0f97abba7..2a51b8ce6f 100644
--- a/.gitlab/os-macos.yml
+++ b/.gitlab/os-macos.yml
@@ -8,8 +8,6 @@
         # TODO: Factor this out so that each job selects the Xcode version to
         # use so that different versions can be tested in a single pipeline.
         DEVELOPER_DIR: "/Applications/Xcode-26.1.app/Contents/Developer"
-        # Avoid conflicting with other projects running on the same machine.
-        SCCACHE_SERVER_PORT: 4227
 
 ### Build and test
 
diff --git a/.gitlab/os-windows.yml b/.gitlab/os-windows.yml
index 8719f0ee70..1fed1770cb 100644
--- a/.gitlab/os-windows.yml
+++ b/.gitlab/os-windows.yml
@@ -5,8 +5,6 @@
 .windows:
     variables:
         GIT_CLONE_PATH: "$CI_BUILDS_DIR\\cmake ci ext\\$CI_CONCURRENT_ID"
-        # Avoid conflicting with other projects running on the same machine.
-        SCCACHE_SERVER_PORT: 4227
 
 ### Build and test