diff --git a/cryptominisat.spec b/cryptominisat.spec
index 0c05d25..ec665db 100644
--- a/cryptominisat.spec
+++ b/cryptominisat.spec
@@ -21,10 +21,6 @@ BuildRequires:  zlib-devel
 
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
 
-# This can be removed once Fedora 28 reaches EOL
-Obsoletes:      cryptominisat4 < 4.5.4-1
-Provides:       cryptominisat4 = %{version}-%{release}
-
 %description
 CryptoMiniSat is a modern, multi-threaded, feature-rich, simplifying SAT
 solver. Highlights:
@@ -41,20 +37,12 @@ Requires:       m4ri-devel%{?_isa}
 Requires:       tbb-devel%{?_isa}
 Requires:       cmake-filesystem
 
-# This can be removed once Fedora 28 reaches EOL
-Obsoletes:      cryptominisat4-devel < 4.5.4-1
-Provides:       cryptominisat4-devel = %{version}-%{release}
-
 %description devel
 Header files for developing applications that use %{name}.
 
 %package libs
 Summary:        Cryptominisat library
 
-# This can be removed once Fedora 28 reaches EOL
-Obsoletes:      cryptominisat4-libs < 4.5.4-1
-Provides:       cryptominisat4-libs = %{version}-%{release}
-
 %description libs
 The %{name} library.
 
@@ -64,10 +52,6 @@ Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
 
 %{?python_provide:%python_provide python3-%{name}}
 
-# This can be removed once Fedora 28 reaches EOL
-Obsoletes:      python2-cryptominisat4 < 4.5.4-1
-Provides:       python2-cryptominisat4 = %{version}-%{release}
-
 # This can be removed once Fedora 29 reaches EOL
 Obsoletes:      python2-%{name} < 5.6.5
 Provides:       python2-%{name} = %{version}-%{release}