diff --git a/sci-physics/root/root-6.12.06-r11.ebuild b/sci-physics/root/root-6.12.06-r11.ebuild
index 757633340138d..dbae19104862c 100644
--- a/sci-physics/root/root-6.12.06-r11.ebuild
+++ b/sci-physics/root/root-6.12.06-r11.ebuild
@@ -66,7 +66,7 @@ CDEPEND="
 	asimage? ( media-libs/libafterimage[gif,jpeg,png,tiff?] )
 	zeroconf? ( net-dns/avahi[mdnsresponder-compat] )
 	davix? ( net-libs/davix )
-	emacs? ( virtual/emacs )
+	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz:0= )
diff --git a/sci-physics/root/root-6.14.08-r4.ebuild b/sci-physics/root/root-6.14.08-r4.ebuild
index e49344b7ac00f..b02dfdad610d5 100644
--- a/sci-physics/root/root-6.14.08-r4.ebuild
+++ b/sci-physics/root/root-6.14.08-r4.ebuild
@@ -71,7 +71,7 @@ CDEPEND="
 	zeroconf? ( net-dns/avahi[mdnsresponder-compat] )
 	cuda? ( >=dev-util/nvidia-cuda-toolkit-9.0 )
 	davix? ( net-libs/davix )
-	emacs? ( virtual/emacs )
+	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz )
diff --git a/sci-physics/root/root-6.16.00-r4.ebuild b/sci-physics/root/root-6.16.00-r4.ebuild
index e7826c4120ea4..18c71c3760de9 100644
--- a/sci-physics/root/root-6.16.00-r4.ebuild
+++ b/sci-physics/root/root-6.16.00-r4.ebuild
@@ -71,7 +71,7 @@ CDEPEND="
 	zeroconf? ( net-dns/avahi[mdnsresponder-compat] )
 	cuda? ( >=dev-util/nvidia-cuda-toolkit-9.0 )
 	davix? ( net-libs/davix )
-	emacs? ( virtual/emacs )
+	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz )
diff --git a/sci-physics/root/root-6.18.04.ebuild b/sci-physics/root/root-6.18.04.ebuild
index 15388d1922841..e83503d327066 100644
--- a/sci-physics/root/root-6.18.04.ebuild
+++ b/sci-physics/root/root-6.18.04.ebuild
@@ -69,7 +69,7 @@ CDEPEND="
 	asimage? ( media-libs/libafterimage[gif,jpeg,png,tiff?] )
 	cuda? ( >=dev-util/nvidia-cuda-toolkit-9.0 )
 	davix? ( net-libs/davix )
-	emacs? ( virtual/emacs )
+	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz )
diff --git a/sci-physics/root/root-9999.ebuild b/sci-physics/root/root-9999.ebuild
index 76552a4771309..94d2a50c952d0 100644
--- a/sci-physics/root/root-9999.ebuild
+++ b/sci-physics/root/root-9999.ebuild
@@ -82,7 +82,7 @@ CDEPEND="
 	asimage? ( media-libs/libafterimage[gif,jpeg,png,tiff] )
 	cuda? ( >=dev-util/nvidia-cuda-toolkit-9.0 )
 	davix? ( net-libs/davix )
-	emacs? ( virtual/emacs )
+	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz )