diff --git a/make-srpm.sh b/make-srpm.sh
index a2fbf3b..6213cea 100755
--- a/make-srpm.sh
+++ b/make-srpm.sh
@@ -89,8 +89,8 @@ cat > "$SPEC" << EOF
 %bcond_without python2
 %endif
 
-# build csdiff-static on 64bit RHEL-10+ and Fedora
-%if 0%{?__isa_bits} == 64 && (0%{?rhel} > 9 || 0%{?fedora})
+# build csdiff-static on 64bit RHEL-8+ and Fedora
+%if 0%{?__isa_bits} == 64 && (0%{?rhel} > 7 || 0%{?fedora})
 %bcond_without static
 %else
 %bcond_with static
@@ -150,7 +150,11 @@ defect lists using various filtering predicates.
 %if %{with static}
 %package static
 Summary:        Statically linked csgrep-static executable
+%if 0%{?rhel} == 8 || 0%{?rhel} == 9
+BuildRequires:  boost1.78-static
+%else
 BuildRequires:  boost-static
+%endif
 BuildRequires:  glibc-static
 BuildRequires:  libstdc++-static
 
@@ -195,6 +199,11 @@ code scan defect lists to find out added or fixed defects.
 export BOOST_INCLUDEDIR=/usr/include/boost169
 export BOOST_LIBRARYDIR=/usr/lib64/boost169
 %endif
+%if 0%{?rhel} == 8 || 0%{?rhel} == 9
+# Set paths for CMake's FindBoost
+export BOOST_INCLUDEDIR=/usr/include/boost1.78
+export BOOST_LIBRARYDIR=/usr/lib64/boost1.78
+%endif
 
 make version.cc
 %if 0%{?rhel} == 7
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7234ecc..ce30eb4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -102,11 +102,17 @@ if(CSGREP_STATIC)
     add_executable(csgrep-static csgrep.cc)
     target_link_options(csgrep-static PRIVATE "-static")
 
-    # FIXME: do not hardcode paths to boost static libs
+    # Use BOOST_LIBRARYDIR if set, otherwise fallback to /usr/lib64
+    if(DEFINED ENV{BOOST_LIBRARYDIR})
+        set(Boost_STATIC_DIR "$ENV{BOOST_LIBRARYDIR}")
+    else()
+        set(Boost_STATIC_DIR "/usr/lib64")
+    endif()
+
     target_link_libraries(csgrep-static cs
-        /usr/lib64/libboost_filesystem.a
-        /usr/lib64/libboost_program_options.a
-        /usr/lib64/libboost_regex.a)
+        ${Boost_STATIC_DIR}/libboost_filesystem.a
+        ${Boost_STATIC_DIR}/libboost_program_options.a
+        ${Boost_STATIC_DIR}/libboost_regex.a)
 
     install(TARGETS csgrep-static
         DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})