diff --git a/dev-ada/gprbuild/gprbuild-24.0.0-r3.ebuild b/dev-ada/gprbuild/gprbuild-24.0.0-r4.ebuild
similarity index 97%
rename from dev-ada/gprbuild/gprbuild-24.0.0-r3.ebuild
rename to dev-ada/gprbuild/gprbuild-24.0.0-r4.ebuild
index ccf43c9a6a3ae..8cb43d924a749 100644
--- a/dev-ada/gprbuild/gprbuild-24.0.0-r3.ebuild
+++ b/dev-ada/gprbuild/gprbuild-24.0.0-r4.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-ADA_COMPAT=( gnat_2021 gcc_12 gcc_13 gcc_14 )
+ADA_COMPAT=( gcc_12 gcc_13 gcc_14 )
 
 inherit ada multiprocessing
 
diff --git a/dev-ada/gprbuild/gprbuild-25.0.0-r3.ebuild b/dev-ada/gprbuild/gprbuild-25.0.0-r4.ebuild
similarity index 98%
rename from dev-ada/gprbuild/gprbuild-25.0.0-r3.ebuild
rename to dev-ada/gprbuild/gprbuild-25.0.0-r4.ebuild
index 21151fa50d5f8..97cc3c2862ec1 100644
--- a/dev-ada/gprbuild/gprbuild-25.0.0-r3.ebuild
+++ b/dev-ada/gprbuild/gprbuild-25.0.0-r4.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-ADA_COMPAT=( gnat_2021 gcc_12 gcc_13 gcc_14 )
+ADA_COMPAT=( gcc_12 gcc_13 gcc_14 )
 PYTHON_COMPAT=( python3_{10..13} pypy3 )
 inherit ada python-any-r1 multiprocessing