diff --git a/.github/workflows/ci.nightly.yml b/.github/workflows/ci.nightly.yml
index 6de72912..8ee865fd 100644
--- a/.github/workflows/ci.nightly.yml
+++ b/.github/workflows/ci.nightly.yml
@@ -17,7 +17,7 @@ concurrency:
 
 jobs:
   test-nightly:
-    timeout-minutes: 90
+    timeout-minutes: 150
     runs-on: ${{ matrix.github-runner }}
     strategy:
       max-parallel: 5 # leave space for other runs in the JuliaLang org, given these tests are long
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 59aa1794..08cff4ab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,7 +39,7 @@ jobs:
     steps:
       - run: exit 0
   test:
-    timeout-minutes: 90
+    timeout-minutes: 150
     runs-on: ${{ matrix.github-runner }}
     strategy:
       max-parallel: 20 # leave space for other runs in the JuliaLang org, given these tests are long