diff --git a/pkgs/development/octave-modules/bim/default.nix b/pkgs/development/octave-modules/bim/default.nix
index 56865493e46b..dc018ae6143e 100644
--- a/pkgs/development/octave-modules/bim/default.nix
+++ b/pkgs/development/octave-modules/bim/default.nix
@@ -1,6 +1,6 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchFromGitHub
 , fpl
 , msh
 }:
@@ -9,9 +9,11 @@ buildOctavePackage rec {
   pname = "bim";
   version = "1.1.6";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "sha256-pv64swrPlgopBlubpAlfoD9KJlOSgF9wdbgdHHTcr9c=";
+  src = fetchFromGitHub {
+    owner = "carlodefalco";
+    repo = "bim";
+    rev = "v${version}";
+    sha256 = "sha256-hgFb1KFE1KJC8skIaeT/7h/fg1aqRpedGnEPY24zZSI=";
   };
 
   requiredOctavePackages = [
diff --git a/pkgs/development/octave-modules/geometry/default.nix b/pkgs/development/octave-modules/geometry/default.nix
index b4bf57262fae..86ef985fd1b0 100644
--- a/pkgs/development/octave-modules/geometry/default.nix
+++ b/pkgs/development/octave-modules/geometry/default.nix
@@ -1,16 +1,17 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchhg
 , matgeom
 }:
 
 buildOctavePackage rec {
   pname = "geometry";
-  version = "4.0.0";
+  version = "unstable-2021-07-07";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "1zmd97xir62fr5v57xifh2cvna5fg67h9yb7bp2vm3ll04y41lhs";
+  src = fetchhg {
+    url = "http://hg.code.sf.net/p/octave/${pname}";
+    rev = "04965cda30b5f9e51774194c67879e7336df1710";
+    sha256 = "sha256-ECysYOJMF4gPiCFung9hFSlyyO60X3MGirQ9FlYDix8=";
   };
 
   requiredOctavePackages = [
diff --git a/pkgs/development/octave-modules/msh/default.nix b/pkgs/development/octave-modules/msh/default.nix
index 8ce1341419c0..e147b9a9c2a2 100644
--- a/pkgs/development/octave-modules/msh/default.nix
+++ b/pkgs/development/octave-modules/msh/default.nix
@@ -1,6 +1,6 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchFromGitHub
 # Octave Dependencies
 , splines
 # Other Dependencies
@@ -15,9 +15,11 @@ buildOctavePackage rec {
   pname = "msh";
   version = "1.0.12";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "sha256-7xbB+RXq5SE7Ke5rNwSo/mqdSZTzCLXRhS4zdfGz55s=";
+  src = fetchFromGitHub {
+    owner = "carlodefalco";
+    repo = "msh";
+    rev = "v${version}";
+    sha256 = "sha256-UnMrIruzm3ARoTgUlMMxfjTOMZw/znZUQJmj3VEOw8I=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/octave-modules/octclip/default.nix b/pkgs/development/octave-modules/octclip/default.nix
index d8c607c391bd..c70a5ffc137a 100644
--- a/pkgs/development/octave-modules/octclip/default.nix
+++ b/pkgs/development/octave-modules/octclip/default.nix
@@ -1,15 +1,17 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchFromBitbucket
 }:
 
 buildOctavePackage rec {
   pname = "octclip";
   version = "2.0.3";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "sha256-u6wvCibdkLgmC8Q2LlpVLfXR3LYtssYlO2cRqYPmmR8=";
+  src = fetchFromBitbucket {
+    owner = "jgpallero";
+    repo = pname;
+    rev = "OctCLIP-${version}";
+    sha256 = "sha256-gG2b8Ix6bzO6O7GRACE81JCVxfXW/+ZdfoniigAEq3g=";
   };
 
   # The only compilation problem is that no formatting specifier was provided
diff --git a/pkgs/development/octave-modules/octproj/default.nix b/pkgs/development/octave-modules/octproj/default.nix
index 0f76ab684708..3769f7f675b5 100644
--- a/pkgs/development/octave-modules/octproj/default.nix
+++ b/pkgs/development/octave-modules/octproj/default.nix
@@ -1,6 +1,6 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchFromBitbucket
 , proj # >= 6.3.0
 }:
 
@@ -8,9 +8,11 @@ buildOctavePackage rec {
   pname = "octproj";
   version = "3.0.2";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "sha256-G2Ajnt4KGaq9hdXHLHL+6d9lGb83wkMHZqswNijwSzs=";
+  src = fetchFromBitbucket {
+    owner = "jgpallero";
+    repo = pname;
+    rev = "OctPROJ-${version}";
+    sha256 = "sha256-d/Zf172Etj+GA0cnGsQaKMjOmirE7Hwyj4UECpg7QFM=";
   };
 
   # The sed changes below allow for the package to be compiled.
diff --git a/pkgs/development/octave-modules/statistics/default.nix b/pkgs/development/octave-modules/statistics/default.nix
index 8067f257d3e7..eba27ab49b2d 100644
--- a/pkgs/development/octave-modules/statistics/default.nix
+++ b/pkgs/development/octave-modules/statistics/default.nix
@@ -1,6 +1,6 @@
 { buildOctavePackage
 , lib
-, fetchurl
+, fetchFromGitHub
 , io
 }:
 
@@ -8,9 +8,11 @@ buildOctavePackage rec {
   pname = "statistics";
   version = "1.5.2";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "sha256-JtXwR7bfFcRu6zRD1gGYG06Txmcu42w2C+zMXEiFf/U=";
+  src = fetchFromGitHub {
+    owner = "gnu-octave";
+    repo = "statistics";
+    rev = "release-${version}";
+    sha256 = "sha256-+Eye29vH4HBfaZRzRNY6J0+wWjh6aCvnq7hZ7M34L2M=";
   };
 
   requiredOctavePackages = [