diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d7fa2f68b..ff6136b00 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,15 +20,15 @@ jobs:
                 cc: [gcc, clang]
                 include:
                     - python: a
-                      pyver: 3.8
+                      pyver: "3.8"
                       sanitize: 0
 
                     - python: b
-                      pyver: 3.9
+                      pyver: "3.9"
                       sanitize: 1
 
                     - python: c
-                      pyver: 3.10
+                      pyver: "3.10"
                       sanitize: 1