diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6603ac0..4a7d2fa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
           path: jason
 
       - name: Setup Nim
-        uses: alaviss/setup-nim@0.1.0
+        uses: alaviss/setup-nim@0.1.1
         with:
           path: nim
           version: ${{ matrix.branch }}
diff --git a/jason.nimble b/jason.nimble
index 845dd10..977a45e 100644
--- a/jason.nimble
+++ b/jason.nimble
@@ -3,31 +3,15 @@ author = "disruptek"
 description = "compile-time json"
 license = "MIT"
 
-requires "nim >= 1.3.5 & < 2.0.0"
-requires "https://github.com/disruptek/testes >= 0.3.2 & < 1.0.0"
+requires "nim >= 1.4.0 & < 2.0.0"
+requires "https://github.com/disruptek/testes >= 0.7.3 & < 1.0.0"
 requires "https://github.com/disruptek/criterion < 1.0.0"
 
-proc execCmd(cmd: string) =
-  echo "exec: " & cmd
-  exec cmd
-
-proc execTest(test: string) =
-  when getEnv("GITHUB_ACTIONS", "false") != "true":
-    execCmd "nim c -f -r " & test
-    when (NimMajor, NimMinor) >= (1, 2):
-      execCmd "nim cpp --gc:arc -d:danger -f -r " & test
-  else:
-    execCmd "nim c              -r " & test
-    execCmd "nim cpp            -r " & test
-    execCmd "nim c   -d:danger  -r " & test
-    execCmd "nim cpp -d:danger  -r " & test
-    when (NimMajor, NimMinor) >= (1, 2):
-      execCmd "nim c --useVersion:1.0 -d:danger -r " & test
-      execCmd "nim c   --gc:arc -d:danger -r " & test
-      execCmd "nim cpp --gc:arc -d:danger -r " & test
-
 task test, "run tests for ci":
-  execTest("tests/test.nim")
+  when defined(windows):
+    exec "testes.cmd"
+  else:
+    exec findExe"testes"
 
 task demo, "generate benchmarks":
   exec """demo docs/bench.svg "nim c --out=\$1 --gc:arc --define:danger tests/bench.nim""""