diff --git a/doc/languages-frameworks/python.section.md b/doc/languages-frameworks/python.section.md
index 4daf488bb28..c4a5bb0612c 100644
--- a/doc/languages-frameworks/python.section.md
+++ b/doc/languages-frameworks/python.section.md
@@ -328,7 +328,7 @@ when building the bindings and are therefore added as `buildInputs`.
 
     meta = {
       description = "Pythonic binding for the libxml2 and libxslt libraries";
-      homepage = http://lxml.de;
+      homepage = https://lxml.de;
       license = licenses.bsd3;
       maintainers = with maintainers; [ sjourdois ];
     };
diff --git a/pkgs/applications/science/astronomy/gravit/default.nix b/pkgs/applications/science/astronomy/gravit/default.nix
index 9edc6220899..03d0018f237 100644
--- a/pkgs/applications/science/astronomy/gravit/default.nix
+++ b/pkgs/applications/science/astronomy/gravit/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://gravit.slowchop.com;
+    homepage = https://gravit.slowchop.com;
     description = "Beautiful OpenGL-based gravity simulator";
     license = stdenv.lib.licenses.gpl2;
 
diff --git a/pkgs/development/compilers/polyml/5.6.nix b/pkgs/development/compilers/polyml/5.6.nix
index 8b5d14e7f5f..7f22f4de624 100644
--- a/pkgs/development/compilers/polyml/5.6.nix
+++ b/pkgs/development/compilers/polyml/5.6.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
     longDescription = ''
       Poly/ML is a full implementation of Standard ML.
     '';
-    homepage = http://www.polyml.org/;
+    homepage = https://www.polyml.org/;
     license = stdenv.lib.licenses.lgpl21;
     platforms = with stdenv.lib.platforms; linux;
     maintainers = [ #Add your name here!
diff --git a/pkgs/development/compilers/polyml/default.nix b/pkgs/development/compilers/polyml/default.nix
index de5b8505527..b7feed84c37 100644
--- a/pkgs/development/compilers/polyml/default.nix
+++ b/pkgs/development/compilers/polyml/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       Poly/ML is a full implementation of Standard ML.
     '';
-    homepage = http://www.polyml.org/;
+    homepage = https://www.polyml.org/;
     license = licenses.lgpl21;
     platforms = with platforms; (linux ++ darwin);
     maintainers = with maintainers; [ z77z yurrriq ];
diff --git a/pkgs/development/compilers/scala/2.11.nix b/pkgs/development/compilers/scala/2.11.nix
index b1100eb8aa9..a1f803b6719 100644
--- a/pkgs/development/compilers/scala/2.11.nix
+++ b/pkgs/development/compilers/scala/2.11.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
       Code sizes are typically reduced by a factor of two to three when
       compared to an equivalent Java application.
     '';
-    homepage = http://www.scala-lang.org/;
+    homepage = https://www.scala-lang.org/;
     license = stdenv.lib.licenses.bsd3;
     platforms = stdenv.lib.platforms.all;
     branch = "2.11";
diff --git a/pkgs/development/python-modules/langcodes/default.nix b/pkgs/development/python-modules/langcodes/default.nix
index d1d25f5407c..d73940e56a6 100644
--- a/pkgs/development/python-modules/langcodes/default.nix
+++ b/pkgs/development/python-modules/langcodes/default.nix
@@ -27,7 +27,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A toolkit for working with and comparing the standardized codes for languages, such as ‘en’ for English or ‘es’ for Spanish";
-    homepage =  http://github.com/LuminosoInsight/langcodes;
+    homepage =  https://github.com/LuminosoInsight/langcodes;
     license = licenses.mit;
     maintainers = with maintainers; [ ixxie ];
   };
diff --git a/pkgs/development/python-modules/lxml/default.nix b/pkgs/development/python-modules/lxml/default.nix
index 9fd050ac35e..8b321b911cc 100644
--- a/pkgs/development/python-modules/lxml/default.nix
+++ b/pkgs/development/python-modules/lxml/default.nix
@@ -20,8 +20,8 @@ buildPythonPackage rec {
 
   meta = {
     description = "Pythonic binding for the libxml2 and libxslt libraries";
-    homepage = http://lxml.de;
+    homepage = https://lxml.de;
     license = stdenv.lib.licenses.bsd3;
     maintainers = with stdenv.lib.maintainers; [ sjourdois ];
   };
-}
\ No newline at end of file
+}
diff --git a/pkgs/development/python-modules/pymc3/default.nix b/pkgs/development/python-modules/pymc3/default.nix
index 015233fba8e..a0dd6113b75 100644
--- a/pkgs/development/python-modules/pymc3/default.nix
+++ b/pkgs/development/python-modules/pymc3/default.nix
@@ -57,7 +57,7 @@ buildPythonPackage rec {
 
   meta = {
     description = "Bayesian estimation, particularly using Markov chain Monte Carlo (MCMC)";
-    homepage = http://github.com/pymc-devs/pymc3;
+    homepage = https://github.com/pymc-devs/pymc3;
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ ilya-kolpakov ];
   };
diff --git a/pkgs/development/python-modules/python3-openid/default.nix b/pkgs/development/python-modules/python3-openid/default.nix
index 238c416bc98..d0b10c42d01 100644
--- a/pkgs/development/python-modules/python3-openid/default.nix
+++ b/pkgs/development/python-modules/python3-openid/default.nix
@@ -17,7 +17,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "OpenID support for modern servers and consumers";
-    homepage = http://github.com/necaris/python3-openid;
+    homepage = https://github.com/necaris/python3-openid;
     license = licenses.asl20;
   };
 }
diff --git a/pkgs/development/tools/misc/epm/default.nix b/pkgs/development/tools/misc/epm/default.nix
index 8d2e6785900..f58d0659965 100644
--- a/pkgs/development/tools/misc/epm/default.nix
+++ b/pkgs/development/tools/misc/epm/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The ESP Package Manager generates distribution archives for a variety of platforms";
-    homepage = http://www.msweet.org/projects.php?Z2;
+    homepage = https://www.msweet.org/projects.php?Z2;
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.unix;
diff --git a/pkgs/servers/sabnzbd/default.nix b/pkgs/servers/sabnzbd/default.nix
index 1b5a8c24424..b7fddeb854d 100644
--- a/pkgs/servers/sabnzbd/default.nix
+++ b/pkgs/servers/sabnzbd/default.nix
@@ -28,7 +28,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Usenet NZB downloader, par2 repairer and auto extracting server";
-    homepage = http://sabnzbd.org;
+    homepage = https://sabnzbd.org;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ fridh ];
diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index 1ff9455adec..a11a530bcdb 100644
--- a/pkgs/shells/zsh/oh-my-zsh/default.nix
+++ b/pkgs/shells/zsh/oh-my-zsh/default.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
 
     $ cp -v $(nix-env -q --out-path oh-my-zsh | cut -d' ' -f3)/share/oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc
   '';
-  homepage        = "http://ohmyz.sh/";
+  homepage        = https://ohmyz.sh/;
   license         = licenses.mit;
   platforms       = platforms.all;
   maintainers     = with maintainers; [ scolobb nequissimus ];
diff --git a/pkgs/tools/security/volatility/default.nix b/pkgs/tools/security/volatility/default.nix
index 086c82faa4c..e3b7fb643a2 100644
--- a/pkgs/tools/security/volatility/default.nix
+++ b/pkgs/tools/security/volatility/default.nix
@@ -14,7 +14,7 @@ pythonPackages.buildPythonApplication rec {
   propagatedBuildInputs = [ pythonPackages.pycrypto pythonPackages.distorm3 ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.volatilityfoundation.org/;
+    homepage = https://www.volatilityfoundation.org/;
     description = "Advanced memory forensics framework";
     maintainers = with maintainers; [ bosu ];
     license = stdenv.lib.licenses.gpl2Plus;