diff --git a/README.md b/README.md
index 919d01c..629bc47 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # kableExtra <img src="https://haozhu233.github.io/kableExtra/kableExtra.svg" align="right" alt="logo" width="120" height = "139" style = "border: none; float: right;">
 <!-- badges: start -->
-[![CRAN_version](http://www.r-pkg.org/badges/version/kableExtra)](https://cran.r-project.org/package=kableExtra)
-[![CRAN_download](http://cranlogs.r-pkg.org/badges/kableExtra)](https://cran.r-project.org/package=kableExtra)
-[![CRAN_download_total](http://cranlogs.r-pkg.org/badges/grand-total/kableExtra)](https://cran.r-project.org/package=kableExtra)
+[![CRAN_version](https://www.r-pkg.org/badges/version/kableExtra)](https://cran.r-project.org/package=kableExtra)
+[![CRAN_download](https://cranlogs.r-pkg.org/badges/kableExtra)](https://cran.r-project.org/package=kableExtra)
+[![CRAN_download_total](https://cranlogs.r-pkg.org/badges/grand-total/kableExtra)](https://cran.r-project.org/package=kableExtra)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1035917.svg)](https://doi.org/10.5281/zenodo.1035917)
 [![R-CMD-check](https://github.com/haozhu233/kableExtra/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/haozhu233/kableExtra/actions/workflows/R-CMD-check.yaml)
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