diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ebde90..cdb31a0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,6 +23,8 @@ jobs:
           extensions: bcmath
           coverage: xdebug
           tools: composer
+          if: "matrix.php >= 8"
+          ini-values: opcache.enable_cli=1, opcache.jit=tracing, opcache.jit_buffer_size=64M
 
       - uses: actions/checkout@v4
         with: