diff --git a/pkgs/tools/misc/html-proofer/Gemfile.lock b/pkgs/tools/misc/html-proofer/Gemfile.lock
index 0ba32818d21..489fa555c5d 100644
--- a/pkgs/tools/misc/html-proofer/Gemfile.lock
+++ b/pkgs/tools/misc/html-proofer/Gemfile.lock
@@ -5,8 +5,8 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     ethon (0.12.0)
       ffi (>= 1.3.0)
-    ffi (1.12.2)
-    html-proofer (3.15.3)
+    ffi (1.13.1)
+    html-proofer (3.16.0)
       addressable (~> 2.3)
       mercenary (~> 0.3)
       nokogumbo (~> 2.0)
@@ -16,14 +16,14 @@ GEM
       yell (~> 2.0)
     mercenary (0.4.0)
     mini_portile2 (2.4.0)
-    nokogiri (1.10.9)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     nokogumbo (2.0.2)
       nokogiri (~> 1.8, >= 1.8.4)
-    parallel (1.19.1)
-    public_suffix (4.0.4)
+    parallel (1.19.2)
+    public_suffix (4.0.6)
     rainbow (3.0.0)
-    typhoeus (1.3.1)
+    typhoeus (1.4.0)
       ethon (>= 0.9.0)
     yell (2.2.2)
 
diff --git a/pkgs/tools/misc/html-proofer/gemset.nix b/pkgs/tools/misc/html-proofer/gemset.nix
index c5836bc74ba..bdd0bbc20c9 100644
--- a/pkgs/tools/misc/html-proofer/gemset.nix
+++ b/pkgs/tools/misc/html-proofer/gemset.nix
@@ -26,10 +26,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "10lfhahnnc91v63xpvk65apn61pib086zha3z5sp1xk9acfx12h4";
+      sha256 = "12lpwaw82bb0rm9f52v1498bpba8aj2l2q359mkwbxsswhpga5af";
       type = "gem";
     };
-    version = "1.12.2";
+    version = "1.13.1";
   };
   html-proofer = {
     dependencies = ["addressable" "mercenary" "nokogumbo" "parallel" "rainbow" "typhoeus" "yell"];
@@ -37,10 +37,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "18afz6rz72j8hnfgzhyr21wh1rfy1x41iyhbcgaq0r1bd7ng1vni";
+      sha256 = "18s8l3nys0lvdkqpfg3c1rd84c5j4dmlx503wnksw9skbzn7l93m";
       type = "gem";
     };
-    version = "3.15.3";
+    version = "3.16.0";
   };
   mercenary = {
     groups = ["default"];
@@ -68,10 +68,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "12j76d0bp608932xkzmfi638c7aqah57l437q8494znzbj610qnm";
+      sha256 = "0xmf60nj5kg9vaj5bysy308687sgmkasgx06vbbnf94p52ih7si2";
       type = "gem";
     };
-    version = "1.10.9";
+    version = "1.10.10";
   };
   nokogumbo = {
     dependencies = ["nokogiri"];
@@ -89,20 +89,20 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "12jijkap4akzdv11lm08dglsc8jmc87xcgq6947i1s3qb69f4zn2";
+      sha256 = "17b127xxmm2yqdz146qwbs57046kn0js1h8synv01dwqz2z1kp2l";
       type = "gem";
     };
-    version = "1.19.1";
+    version = "1.19.2";
   };
   public_suffix = {
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1l1kqw75asziwmzrig8rywxswxz8l91sc3pvns02ffsqac1a3wiz";
+      sha256 = "1xqcgkl7bwws1qrlnmxgh8g4g9m10vg60bhlw40fplninb3ng6d9";
       type = "gem";
     };
-    version = "4.0.4";
+    version = "4.0.6";
   };
   rainbow = {
     groups = ["default"];
@@ -120,10 +120,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0cni8b1idcp0dk8kybmxydadhfpaj3lbs99w5kjibv8bsmip2zi5";
+      sha256 = "1m22yrkmbj81rzhlny81j427qdvz57yk5wbcf3km0nf3bl6qiygz";
       type = "gem";
     };
-    version = "1.3.1";
+    version = "1.4.0";
   };
   yell = {
     groups = ["default"];