diff --git a/example/thanos-engine/go.mod b/example/thanos-engine/go.mod
index 0ddb563..0fb74dd 100644
--- a/example/thanos-engine/go.mod
+++ b/example/thanos-engine/go.mod
@@ -4,7 +4,7 @@ go 1.19
 
 require (
 	github.com/cortexproject/promqlsmith v0.0.0-00010101000000-000000000000
-	github.com/efficientgo/core v1.0.0-rc.2
+	github.com/efficientgo/core v1.0.0-rc.3
 	github.com/google/go-cmp v0.6.0
 	github.com/prometheus/prometheus v0.55.0
 	github.com/thanos-community/promql-engine v0.0.0-20230307133125-c619a78add34
diff --git a/example/thanos-engine/go.sum b/example/thanos-engine/go.sum
index 1223a78..11bd9d1 100644
--- a/example/thanos-engine/go.sum
+++ b/example/thanos-engine/go.sum
@@ -93,8 +93,8 @@ github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKoh
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
 github.com/edsrzf/mmap-go v1.1.0 h1:6EUwBLQ/Mcr1EYLE4Tn1VdW1A4ckqCQWZBw8Hr0kjpQ=
 github.com/edsrzf/mmap-go v1.1.0/go.mod h1:19H/e8pUPLicwkyNgOykDXkJ9F0MHE+Z52B8EIth78Q=
-github.com/efficientgo/core v1.0.0-rc.2 h1:7j62qHLnrZqO3V3UA0AqOGd5d5aXV3AX6m/NZBHp78I=
-github.com/efficientgo/core v1.0.0-rc.2/go.mod h1:FfGdkzWarkuzOlY04VY+bGfb1lWrjaL6x/GLcQ4vJps=
+github.com/efficientgo/core v1.0.0-rc.3 h1:X6CdgycYWDcbYiJr1H1+lQGzx13o7bq3EUkbB9DsSPc=
+github.com/efficientgo/core v1.0.0-rc.3/go.mod h1:FfGdkzWarkuzOlY04VY+bGfb1lWrjaL6x/GLcQ4vJps=
 github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=